651 books • 47 series
Book #1: The Gross Ghost Mystery
Book #2: Karate Clue
Book #3: First Day, Worst Day
Book #4: Jump Shot Detectives
Book #5: Dinosaur Disaster
Book #1: Tower Treasure
Book #10: What Happened at Midnight
Book #12: Footprints Under the Window
Book #14: The Hidden Harbor Mystery
Book #16: Figure in Hiding #16
Book #1: Extreme Danger
Book #2: Running on Fumes
Book #3: Boardwalk Bust
Book #4: Thrill Ride
Book #6: Burned
Book #7: The Sign of the Crooked Arrow
Book #8: Hooded Hawk Mystery
Book #9: Viking Symbol Mystery
Book #35: Mystery at Devil's Paw
Book #36: The Ghost at Skeleton Rock
Book #120: The Case of the Cosmic Kidnapping
Book #1: The Mystery of the Aztec Warrior
Book #5: Mystery of the Disappearing Floor
Book #7: Mystery of the Spiral Bridge
Book #7: The Mystery of the Melted Coins
Book #9: The Clue of the Screeching Owl
Book #1: Trouble at the Arcade
Book #2: The Missing Mitt
Book #3: Mystery Map
Book #4: Hopping Mad
Book #5: A Monster of a Mystery
Book #5: Rocky Road
Book #15: Death and Diamonds
Book #40: The Case of the Myface Kidnapper (W.T.)
Book #1: Wanted
Book #2: Kidnapped at the Casino
Book #104: Tricks of the Trade
Book #118: Danger in the Fourth Dimension
Book #119: Trouble at Coyote Canyon
Book #121: The Mystery in the Old Mine
Book #2: Crime for Christmas
Book #2: Danger on Ice
Book #1: The Secret of the Knight's Sword
Book #3: The Feathered Serpent
Book #4: SEC Cargo
Book #53: Trail of Lies