Hardy Boys Adventures
36 primary works • 51 total works
Book 14
Brother detectives Frank and Joe come face to face with...a sasquatch...in the fourteenth book in the thrilling Hardy Boys Adventures series.
The legend of the Bayport Beast has haunted the town for almost a century. Each summer brings rumors of a gigantic sasquatch creature roaming the nearby woods.
However, this summer brings more sightings than usual, causing all kinds of people to flock to town, including a few UFO enthusiasts who are convinced the beast could be some kind of stranded alien. More than that, the sightings cause a media blitz!
Frank and Joe have never believed in the Bayport Beast, but when Frank catches a glimpse of a furry creature running through the woods, he changes his mind fast. And when reports surface of the beast attacking people-including a few friends-the Hardy brothers are on the case!
After Frank and Joe are cornered by not one but three fearsome creatures, they have to wonder: is the Bayport Beast real after all? And is it multiplying?
The legend of the Bayport Beast has haunted the town for almost a century. Each summer brings rumors of a gigantic sasquatch creature roaming the nearby woods.
However, this summer brings more sightings than usual, causing all kinds of people to flock to town, including a few UFO enthusiasts who are convinced the beast could be some kind of stranded alien. More than that, the sightings cause a media blitz!
Frank and Joe have never believed in the Bayport Beast, but when Frank catches a glimpse of a furry creature running through the woods, he changes his mind fast. And when reports surface of the beast attacking people-including a few friends-the Hardy brothers are on the case!
After Frank and Joe are cornered by not one but three fearsome creatures, they have to wonder: is the Bayport Beast real after all? And is it multiplying?
Book 15
Brother detectives Frank and Joe follow a crooked trail of artistic deception in the fifteenth book in the thrilling Hardy Boys Adventures series.
The Hardy Boys are visiting Paris! Joe is excited to check out all the street art he’s heard about. And Frank can’t wait to go to all the museums he’s researched.
On their very first day in the city, the brothers are woken up early in the morning by fireworks. But these are no ordinary fireworks. They are a part of elaborate cover for the heist of a priceless artifact. What’s worse, the theft seems to have been orchestrated by Joe’s favorite street artist, an unidentified outlaw and activist that goes only by the name Le Stylo. Everyone seems sure that it’s him, but the Hardys are suspicious. From everything they know about Le Stylo, the crime is out of character. Sure, he makes a habit of provoking the authorities, but he’s an activist; not a thief. Could the artist known for his mystique have been framed? Frank and Joe are determined to find out.
A race to find the real thief has Frank and Joe following clues that lead them all over Paris, where they hobnob with rich art patrons, travel in a car that can only be described as a small Batmobile, and explore the extensive Catacombs under the city. Deep in the world of artistic deception, the boys have to wonder, are they in over their heads?
The Hardy Boys are visiting Paris! Joe is excited to check out all the street art he’s heard about. And Frank can’t wait to go to all the museums he’s researched.
On their very first day in the city, the brothers are woken up early in the morning by fireworks. But these are no ordinary fireworks. They are a part of elaborate cover for the heist of a priceless artifact. What’s worse, the theft seems to have been orchestrated by Joe’s favorite street artist, an unidentified outlaw and activist that goes only by the name Le Stylo. Everyone seems sure that it’s him, but the Hardys are suspicious. From everything they know about Le Stylo, the crime is out of character. Sure, he makes a habit of provoking the authorities, but he’s an activist; not a thief. Could the artist known for his mystique have been framed? Frank and Joe are determined to find out.
A race to find the real thief has Frank and Joe following clues that lead them all over Paris, where they hobnob with rich art patrons, travel in a car that can only be described as a small Batmobile, and explore the extensive Catacombs under the city. Deep in the world of artistic deception, the boys have to wonder, are they in over their heads?
Book 15
Book 16
Book 16
A criminal that seems to be straight out of a Sherlock Holmes novel is out to get brother detectives Frank and Joe in the sixteenth book in the thrilling Hardy Boys Adventures series.
An original Sherlock Holmes manuscript was stolen from the Bayport Museum and now pages keep showing up in Frank and Joe's things: their lockers, menus, even the backseat of their car. It's clear someone is out to frame them. But who could it be?
The boys try their usual means of deduction, but everything leads to a dead end. They just keep finding unsuspecting people who were paid to hide the pages by a mysterious third party. Frank recognizes this tactic-it's exactly what Moriarty would do to throw off Sherlock Holmes. So the brothers decide to use one of Sherlock's signature ideas: The Baker Street Irregulars. Though instead of street kids, Frank and Joe use a group of skateboarding tweens to keep their eyes and ears open around town.
It's a battle of wits as the brother detectives try to clear their name. But this Moriarty wannabe always seems to be one step ahead. Can the Hardy boys find the real culprit before it's too late?
An original Sherlock Holmes manuscript was stolen from the Bayport Museum and now pages keep showing up in Frank and Joe's things: their lockers, menus, even the backseat of their car. It's clear someone is out to frame them. But who could it be?
The boys try their usual means of deduction, but everything leads to a dead end. They just keep finding unsuspecting people who were paid to hide the pages by a mysterious third party. Frank recognizes this tactic-it's exactly what Moriarty would do to throw off Sherlock Holmes. So the brothers decide to use one of Sherlock's signature ideas: The Baker Street Irregulars. Though instead of street kids, Frank and Joe use a group of skateboarding tweens to keep their eyes and ears open around town.
It's a battle of wits as the brother detectives try to clear their name. But this Moriarty wannabe always seems to be one step ahead. Can the Hardy boys find the real culprit before it's too late?
Book 17
Frank and Joe investigate a supernatural crime in the seventeenth book in the thrilling Hardy Boys Adventures series.
One of the Hardys’ favorite writers, Nathan Foxwood, has recently died in a tragic car accident. Now, the press is swarming his house in Bayport to get the scoop on the novel he completed just before his untimely death.
When Joe hears that Nathan’s wife is having a giant estate sale, he drags Frank with him. Who could pass up the opportunity to see inside their favorite author’s home? Nathan’s wife says she wants to get away as quickly as possible; strange things have been happening since their first night there and now her husband is gone and she’s sure the house is haunted. But Nathan’s assistant, Adam, is not so willing to blame it all on the supernatural. Valuable things keep disappearing from the house—why would a ghost need money? Adam recognizes the Hardys’ from an article he read and asks for their help.
Of course Frank and Joe Hardy don’t believe in ghosts and are positive they can get to the bottom of all this. But when Adam is mysteriously hurt after spending the night alone in the house, the brothers start to wonder; what is the motive for these crimes if not ghostly revenge? Could these brother detectives be in over their heads?
One of the Hardys’ favorite writers, Nathan Foxwood, has recently died in a tragic car accident. Now, the press is swarming his house in Bayport to get the scoop on the novel he completed just before his untimely death.
When Joe hears that Nathan’s wife is having a giant estate sale, he drags Frank with him. Who could pass up the opportunity to see inside their favorite author’s home? Nathan’s wife says she wants to get away as quickly as possible; strange things have been happening since their first night there and now her husband is gone and she’s sure the house is haunted. But Nathan’s assistant, Adam, is not so willing to blame it all on the supernatural. Valuable things keep disappearing from the house—why would a ghost need money? Adam recognizes the Hardys’ from an article he read and asks for their help.
Of course Frank and Joe Hardy don’t believe in ghosts and are positive they can get to the bottom of all this. But when Adam is mysteriously hurt after spending the night alone in the house, the brothers start to wonder; what is the motive for these crimes if not ghostly revenge? Could these brother detectives be in over their heads?
Book 18
It’s a case of hidden identities for brother detectives Frank and Joe in the in the eighteenth book in the thrilling Hardy Boys Adventures series.
The Hardy brothers and Frank’s new girlfriend, Jones, are attending a local comic book convention on the shore. They meet up with Jones’s friend Harper, a fellow comics super fan, on the boardwalk outside the convention. The four of them spend hours running from booth to booth and end the perfect day with pizza at Harper’s short-term rental apartment.
Things don’t stay so perfect, though. On the way home, Jones realizes she switched phones with Harper by accident and she is getting some really scary texts. When they show up at the apartment the next day, they find it totally destroyed and Harper is missing.
Frank and Joe start digging into their new friend’s life, hoping to find out where she might have gone, but the more they find out about her, the more mysterious she becomes. Can Frank and Joe find this secretive character? Or has she disappeared forever?
The Hardy brothers and Frank’s new girlfriend, Jones, are attending a local comic book convention on the shore. They meet up with Jones’s friend Harper, a fellow comics super fan, on the boardwalk outside the convention. The four of them spend hours running from booth to booth and end the perfect day with pizza at Harper’s short-term rental apartment.
Things don’t stay so perfect, though. On the way home, Jones realizes she switched phones with Harper by accident and she is getting some really scary texts. When they show up at the apartment the next day, they find it totally destroyed and Harper is missing.
Frank and Joe start digging into their new friend’s life, hoping to find out where she might have gone, but the more they find out about her, the more mysterious she becomes. Can Frank and Joe find this secretive character? Or has she disappeared forever?
Book 19
Brother detectives Frank and Joe search a hidden castle for clues to help them find a missing comic book in the nineteenth book in the thrilling Hardy Boys Adventures series.
Frank and Joe have been hanging out at Sir Robert’s Comic Kingdom, the local comic and gaming shop, and got the exclusive invite to this year’s Halloween costume ball at Bayport’s one and only castle. Sir Robert plans to use the big event to unveil his most prized possession, a super rare comic that is rumored to contain a map to buried treasure.
Sir Robert agrees to show his store regulars—who now include Frank and Joe—a sneak preview of the comic before the party. But when he goes to unlock the fireproof casing, he finds the book is gone.
It will take all of Frank and Joe’s recently acquired LARPing skills to solve this case. Anything can happen in a castle full of dungeons and deception. Can the Hardy boys keep up?
Frank and Joe have been hanging out at Sir Robert’s Comic Kingdom, the local comic and gaming shop, and got the exclusive invite to this year’s Halloween costume ball at Bayport’s one and only castle. Sir Robert plans to use the big event to unveil his most prized possession, a super rare comic that is rumored to contain a map to buried treasure.
Sir Robert agrees to show his store regulars—who now include Frank and Joe—a sneak preview of the comic before the party. But when he goes to unlock the fireproof casing, he finds the book is gone.
It will take all of Frank and Joe’s recently acquired LARPing skills to solve this case. Anything can happen in a castle full of dungeons and deception. Can the Hardy boys keep up?
Book 20
Brother detectives Frank and Joe face the dangers of Black Bear Mountain once again in the twentieth book in the thrilling Hardy Boys Adventures series.
Frank and Joe are back on Black Bear Mountain, the scene of a previous wilderness adventure and mind-bending mystery. This time, the brothers are checking in on Dr. K, a friend they made during their first trip. Dr. K is a fan of living off the grid, but he’s been MIA long enough to cause worry in the small mountain town. And so the teenage detectives Black Bear Mountain relied on before have been called in to help once again.
It’s not a good start to the investigation when Frank and Joe’s ATV is put out of commission by a falling tree. Then their camp, including their radio—their only way to contact the outside world—is destroyed by wildlife searching for food. And when they finally reach Dr. K’s research station, they find his cabin has been cleaned out and abandoned—the only current resident is an angry skunk.
Frank and Joe may have been better prepared for their second Black Bear Mountain adventure, but they’re not having any more luck this time around. In fact, they’ve been downright unlucky. Is someone trying to sabotage their mission? And if they are, how can the brothers stop this invisible foe?
Frank and Joe are back on Black Bear Mountain, the scene of a previous wilderness adventure and mind-bending mystery. This time, the brothers are checking in on Dr. K, a friend they made during their first trip. Dr. K is a fan of living off the grid, but he’s been MIA long enough to cause worry in the small mountain town. And so the teenage detectives Black Bear Mountain relied on before have been called in to help once again.
It’s not a good start to the investigation when Frank and Joe’s ATV is put out of commission by a falling tree. Then their camp, including their radio—their only way to contact the outside world—is destroyed by wildlife searching for food. And when they finally reach Dr. K’s research station, they find his cabin has been cleaned out and abandoned—the only current resident is an angry skunk.
Frank and Joe may have been better prepared for their second Black Bear Mountain adventure, but they’re not having any more luck this time around. In fact, they’ve been downright unlucky. Is someone trying to sabotage their mission? And if they are, how can the brothers stop this invisible foe?
Book 21
Brother detectives Frank and Joe dive deep into the Florida Keys to find a missing person in the twenty-first book in the thrilling Hardy Boys Adventures series.
Frank and Joe Hardy have been invited to take part in a conservation mission by a marine biologist at the Bayport Aquarium. The boys get to go on an all-expenses paid trip to the lush and beautiful Florida Keys to help save sharks!
But the trip’s purpose is suddenly sidelined when a paddle boarder goes missing and rumors start that the disappearance is the result of a shark attack. After spending so much time learning about the local shark population, the Hardy Boys aren’t buying the story.
It will take all of Frank and Joe’s recently acquired knowledge about sharks and their habitat to solve this case. Will they be able to discover what’s really going on before it’s too late?
Frank and Joe Hardy have been invited to take part in a conservation mission by a marine biologist at the Bayport Aquarium. The boys get to go on an all-expenses paid trip to the lush and beautiful Florida Keys to help save sharks!
But the trip’s purpose is suddenly sidelined when a paddle boarder goes missing and rumors start that the disappearance is the result of a shark attack. After spending so much time learning about the local shark population, the Hardy Boys aren’t buying the story.
It will take all of Frank and Joe’s recently acquired knowledge about sharks and their habitat to solve this case. Will they be able to discover what’s really going on before it’s too late?
Book 21
Book 22
Brother detectives Frank and Joe cook up a new case as a series of accidents threatens a remote island in the twenty-second book in the thrilling Hardy Boys Adventures series.
When Aunt Trudy wins a competition to intern with celebrity chef Colton Spark, she invites Frank and Joe to join her on her trip to the remote Rubble Island off the coast of Maine, where she’ll be helping Colton cook for the prestigious Golden Claw Awards. They’ll be staying at the island’s beautiful Seaspray Inn where the event is being hosted, and though it’s the off-season, the boys will be free to check out the rocky beaches, learn about lobstering, and take in all the close-knit community has to offer.
Still, even before the Hardys reach the island, it becomes clear that the locals are not big fans of Colton. As the big day approaches, the Seaspray Inn encounters a series of mishaps. Is it bad luck, or is someone trying to scare Colton off? And then, the night before the awards, the Golden Claw goes missing!
But before the police can make it over from the mainland to investigate, a huge storm blows in. Cut off from the world, tensions on the island are higher than ever. Will Frank and Joe be able to figure out who’s behind the crimes before someone gets hurt? Or is this troubled island more than they can handle?
When Aunt Trudy wins a competition to intern with celebrity chef Colton Spark, she invites Frank and Joe to join her on her trip to the remote Rubble Island off the coast of Maine, where she’ll be helping Colton cook for the prestigious Golden Claw Awards. They’ll be staying at the island’s beautiful Seaspray Inn where the event is being hosted, and though it’s the off-season, the boys will be free to check out the rocky beaches, learn about lobstering, and take in all the close-knit community has to offer.
Still, even before the Hardys reach the island, it becomes clear that the locals are not big fans of Colton. As the big day approaches, the Seaspray Inn encounters a series of mishaps. Is it bad luck, or is someone trying to scare Colton off? And then, the night before the awards, the Golden Claw goes missing!
But before the police can make it over from the mainland to investigate, a huge storm blows in. Cut off from the world, tensions on the island are higher than ever. Will Frank and Joe be able to figure out who’s behind the crimes before someone gets hurt? Or is this troubled island more than they can handle?
Book 22
Brother detectives Frank and Joe cook up a new case as a series of accidents threatens a remote island in the twenty-second book in the thrilling Hardy Boys Adventures series.
When Aunt Trudy wins a competition to intern with celebrity chef Colton Spark, she invites Frank and Joe to join her on her trip to the remote Rubble Island off the coast of Maine, where she’ll be helping Colton cook for the prestigious Golden Claw Awards. They’ll be staying at the island’s beautiful Seaspray Inn where the event is being hosted, and though it’s the off-season, the boys will be free to check out the rocky beaches, learn about lobstering, and take in all the close-knit community has to offer.
Still, even before the Hardys reach the island, it becomes clear that the locals are not big fans of Colton. As the big day approaches, the Seaspray Inn encounters a series of mishaps. Is it bad luck, or is someone trying to scare Colton off? And then, the night before the awards, the Golden Claw goes missing!
But before the police can make it over from the mainland to investigate, a huge storm blows in. Cut off from the world, tensions on the island are higher than ever. Will Frank and Joe be able to figure out who’s behind the crimes before someone gets hurt? Or is this troubled island more than they can handle?
When Aunt Trudy wins a competition to intern with celebrity chef Colton Spark, she invites Frank and Joe to join her on her trip to the remote Rubble Island off the coast of Maine, where she’ll be helping Colton cook for the prestigious Golden Claw Awards. They’ll be staying at the island’s beautiful Seaspray Inn where the event is being hosted, and though it’s the off-season, the boys will be free to check out the rocky beaches, learn about lobstering, and take in all the close-knit community has to offer.
Still, even before the Hardys reach the island, it becomes clear that the locals are not big fans of Colton. As the big day approaches, the Seaspray Inn encounters a series of mishaps. Is it bad luck, or is someone trying to scare Colton off? And then, the night before the awards, the Golden Claw goes missing!
But before the police can make it over from the mainland to investigate, a huge storm blows in. Cut off from the world, tensions on the island are higher than ever. Will Frank and Joe be able to figure out who’s behind the crimes before someone gets hurt? Or is this troubled island more than they can handle?
Book 23
Brother detectives Frank and Joe go full-steam ahead to find the truth in the twenty-third book in the thrilling Hardy Boys Adventures series.
The Hardys and some of their friends hop aboard an old train that’s been restored and turned into a murder mystery experience. A cast of actors will perform an immersive theatrical production while passengers dine in style, assume roles in the game, and ultimately try their hand at solving the case. This should be a cakewalk for Joe and Frank!
The production is a mess. The actors are lousy, fumbling their lines and spelling out obvious clues. At least the food is pretty good. But just as the Hardy Boys are trying to make the most of a disappointing situation, one of the cast members goes missing. At first, the audience thinks that the show is taking a turn for the better, but it quickly becomes clear that this is not part of the act. For the Hardys, the mystery has gone from good fun to deadly serious. And trapped on a train full of people who aren’t who they say they are, everyone is a suspect.
Will Frank and Joe be able to figure out how someone can vanish into thin air on a moving train before this case goes completely off the rails?
The Hardys and some of their friends hop aboard an old train that’s been restored and turned into a murder mystery experience. A cast of actors will perform an immersive theatrical production while passengers dine in style, assume roles in the game, and ultimately try their hand at solving the case. This should be a cakewalk for Joe and Frank!
The production is a mess. The actors are lousy, fumbling their lines and spelling out obvious clues. At least the food is pretty good. But just as the Hardy Boys are trying to make the most of a disappointing situation, one of the cast members goes missing. At first, the audience thinks that the show is taking a turn for the better, but it quickly becomes clear that this is not part of the act. For the Hardys, the mystery has gone from good fun to deadly serious. And trapped on a train full of people who aren’t who they say they are, everyone is a suspect.
Will Frank and Joe be able to figure out how someone can vanish into thin air on a moving train before this case goes completely off the rails?
Book 24
Frank and Joe circle a new case in the wilds of Alaska in the twenty-fourth book in the thrilling Hardy Boys Adventures series.
Frank and Joe Hardy are excited when their parents’ friends, the Adenshaws, invite them to come visit their home in Alaska. The brothers will have the perfect guide to explore the beautiful landscape the area is known for—their hosts’ daughter, Kate. During the visit, Kate introduces the Hardys to her beloved peregrine falcon.
There’s a major falconry competition coming up in the United Arab Emirates, and even though Kate can’t compete, she—like so many others in the falconry world—is eagerly looking forward to the event, which has millions riding on it. One California falconer even offered to buy Kate’s falcon so he could enter it in the contest. When Kate’s peregrine goes missing, it looks like the Californian or someone else may have turned criminal in their ruthless desire to win. Kate is devastated, and the Hardy boys have to figure out if her falcon could have flown off…or if it was stolen.
Frank and Joe may not know much about birds of prey, but they do know how to solve a mystery. But can they soar to success?
Frank and Joe Hardy are excited when their parents’ friends, the Adenshaws, invite them to come visit their home in Alaska. The brothers will have the perfect guide to explore the beautiful landscape the area is known for—their hosts’ daughter, Kate. During the visit, Kate introduces the Hardys to her beloved peregrine falcon.
There’s a major falconry competition coming up in the United Arab Emirates, and even though Kate can’t compete, she—like so many others in the falconry world—is eagerly looking forward to the event, which has millions riding on it. One California falconer even offered to buy Kate’s falcon so he could enter it in the contest. When Kate’s peregrine goes missing, it looks like the Californian or someone else may have turned criminal in their ruthless desire to win. Kate is devastated, and the Hardy boys have to figure out if her falcon could have flown off…or if it was stolen.
Frank and Joe may not know much about birds of prey, but they do know how to solve a mystery. But can they soar to success?
Book 25
A buried secret becomes a big problem for Frank and Joe in the twenty-fifth book in the thrilling Hardy Boys Adventures series.
Frank and Joe are on a history club trip to New York City, and their first stop is the Prohibition Museum where they’ll hear about how smugglers building getaway vehicles led to the rise of modern stock car racing. During a tour of damp escape tunnels beneath the museum, Frank slips and breaks a wall panel with his elbow, revealing a hidden compartment containing documents from the 1920s!
The documents reveal that The Gilded Top Hat—the speakeasy which later became the Prohibition Museum—wasn’t actually owned by the Faccini brothers who were arrested for its bootlegging operations. The museum curator is eager to investigate this lead into the speakeasy’s history, and never ones to turn down a good case, Frank and Joe volunteer to help out. But before long, someone steals the documents and sends the boys warnings to stop digging into the past. Can Frank and Joe uncover the truth before it’s buried for another hundred years—and the boys along with it?
Frank and Joe are on a history club trip to New York City, and their first stop is the Prohibition Museum where they’ll hear about how smugglers building getaway vehicles led to the rise of modern stock car racing. During a tour of damp escape tunnels beneath the museum, Frank slips and breaks a wall panel with his elbow, revealing a hidden compartment containing documents from the 1920s!
The documents reveal that The Gilded Top Hat—the speakeasy which later became the Prohibition Museum—wasn’t actually owned by the Faccini brothers who were arrested for its bootlegging operations. The museum curator is eager to investigate this lead into the speakeasy’s history, and never ones to turn down a good case, Frank and Joe volunteer to help out. But before long, someone steals the documents and sends the boys warnings to stop digging into the past. Can Frank and Joe uncover the truth before it’s buried for another hundred years—and the boys along with it?
Join amateur sleuth brothers Frank and Joe Hardy as they solve thrilling mysteries with the first ten Hardy Boys adventures, now available in a collectible boxed set!
This adventurous collection includes:
Secret of the Red Arrow
Mystery of the Phantom Heist
The Vanishing Game
Into Thin Air
Peril at Granite Peak
The Battle of Bayport
Shadows at Predator Reef
Deception on the Set
The Curse of the Ancient Emerald
Tunnel of Secrets
Hardy Boys Adventures Special Collection (Boxed Set)
by Franklin W. Dixon
Published 18 February 2021
The Hardy brothers solve Bayport’s toughest mysteries in this beautifully redesigned, collectible set of the first ten Hardy Boys Adventures.
Smart, resourceful, and perceptive, Frank and Joe Hardy can be counted on to crack the case. They’re familiar with encountering danger along the way, but from tracking a jewel thief to surviving a blizzard, the brothers are faced with some of the most perilous adventures yet. In these ten page-turning mysteries, they’ll have to stay on their toes to catch the culprits…and survive the search.
With all-new covers only available in this collection, this thrilling paperback boxed set includes:
Secret of the Red Arrow
Mystery of the Phantom Heist
The Vanishing Game
Into Thin Air
Peril at Granite Peak
The Battle of Bayport
Shadows at Predator Reef
Deception on the Set
The Curse of the Ancient Emerald
Tunnel of Secrets
Smart, resourceful, and perceptive, Frank and Joe Hardy can be counted on to crack the case. They’re familiar with encountering danger along the way, but from tracking a jewel thief to surviving a blizzard, the brothers are faced with some of the most perilous adventures yet. In these ten page-turning mysteries, they’ll have to stay on their toes to catch the culprits…and survive the search.
With all-new covers only available in this collection, this thrilling paperback boxed set includes:
Secret of the Red Arrow
Mystery of the Phantom Heist
The Vanishing Game
Into Thin Air
Peril at Granite Peak
The Battle of Bayport
Shadows at Predator Reef
Deception on the Set
The Curse of the Ancient Emerald
Tunnel of Secrets