Book 19

The Lemonade Raid

by Carolyn Keene

Published 1 July 1997
When her lemonade stand is threatened by a lemon-stealing bandit, Nancy wonders who could possible want to steal a box of lemons and searches for clues in a surprising place.

Book 20

Hannah's Secret

by Carolyn Keene

Published 1 September 1997
Hannah's more than a housekeeper. She's almost part of Nancy's family. But Hannah has a secret, and Nancy thinks she knows what it is: Hannah's got another job--with rich and grumpy old Mrs. Garfield!

Book 21

Bess is dying to be the Pumpkin Princess in the fall parade. But only one girl can wear the crown and the beautiful gown. And the winner is...Brenda Carlton, Princess Snooty Nose!

Book 21

Princess on Parade

by Carolyn Keene

Published 1 November 1997

Book 22

The Clue in the Glue

by Carolyn Keene

Published 1 January 1998
George is upset. Everyone's going on a field trip except her. Why? Because the teacher says she was passing notes in class. But she wasn't. Someone was passing notes to her!

Book 23

Nancy and her friends laugh at the notion, published in the National Snooper magazine, that the queen of the planet Zagon has arrived on Earth, until the next day, when their substitute teacher turns out to be a Mrs. Zagon.

Book 23

Alien in the Classroom

by Carolyn Keene

Published 1 March 1998

Book 24

Hidden Treasures

by Carolyn Keene

Published 1 May 1998
Stumbling on an old diary full of secret clues, Nancy uncovers a mystery that begins with one little old book and ends with a big new surprise.

Book 25

Dare at the Fair

by Carolyn Keene

Published 1 July 1998
It's opening day at the Big Thrills amusement park, and that means excitement for everybody. Well, maybe not for Nancy and her friends-their free passes have just vanished! Will they find them before they miss out on all the fun?

Book 26

The Lucky Horseshoes

by Carolyn Keene

Published 1 September 1998
Nancy, Bess, and George are doubly excited. Not only are they taking horseback-riding lessons, but Bess is in the school spelling bee. And maybe her mom's lucky horseshoe earrings will help her win!But now the earrings have disappeared. Good thing Nancy's around to help Bess solve the mystery--because a good friend is the best good-luck charm of all!

Book 27

Trouble Takes the Cake

by Carolyn Keene

Published 1 November 1998
Nancy's aunt Eloise in New York City has invited her, Bess, and George to spend the weekend. After a long day of sightseeing, the group ends up at Haunted Harriet's, a spooky theme restaurant. But real horror begins when a birthday cake explodes and oozes green slime, rubber worms, and fake spiders -- and Nancy gets blamed for it!

Book 28

Thrill on the Hill

by Carolyn Keene

Published 1 January 1999
A DAY OF SLEDDING SNOWBALLS INTO A BAFFLING MYSTERY!
Hurray! The ground is covered with thick snow and that means no school. As soon as Nancy gets the news, she, George, and Bess head straight for the park to go sledding. Everybody is there, including Molly Angelo with her brand-new sled.
Molly's sled is really fast, and everyone wants to borrow it. But after the girls take a hot-chocolate break, they return to find it's gone! So who took it? Just like snowflakes, no two mysteries are alike -- and Nancy better figure this one out before the snow melts!

Book 29

Lights! Camera! Clues!

by Carolyn Keene

Published 1 February 1999
NANCY MEETS A FAMOUS ACTRESS -- AND LOSES A FAMOUS TURTLE!
Nine-year-old actress Lucy Webb is starring in Totally Tina, a movie that's being filmed right in River Heights -- and Nancy and her friends are chosen as extras for the movie! Not only do the girls get to meet their favorite actress, but they get to take care of Lucy's pet turtle, Harry, while she's filming.
But when they look away for a second, Harry gets turtle-napped! Now Lucy is really mad and won't visit Nancy's school as she promised. The girls had better find Lucy's favorite pet before Nancy's in the doghouse with her whole school!

Book 30

It's No Joke

by Carolyn Keene

Published 1 January 1999

Book 31


Book 32

The Black Velvet Mystery

by Carolyn Keene

Published 5 January 1999

Book 33

The Gumdrop Ghost

by Carolyn Keene and Jack Larkin

Published 1 October 1999

Book 34

Trash or Treasure

by Carolyn Keene

Published 1 February 2000
Nancy and her friends are helping out at a garage sale, but they're also hoping to discover some special treasures. Bess has her heart set on a ballerina painting, but right after the sale opens, it disappears. Then the girls realize there's $10 too much in the cash box -- the exact cost of the painting -- so it wasn't technically stolen after all. But Bess really wants that painting....and maybe it's worth more than $10 after all!

Book 35

Third-Grade Reporter

by Carolyn Keene

Published 1 April 2000

Book 36

The Make-Believe Mystery

by Carolyn Keene

Published 1 June 2000
It's hard to write a mystery story when the plot disappears!
Nancy, Bess, George, and Phoebe Archer team up to write a mystery for a class project. Everyone else in the class is on teams too, and the best story will be printed in the school newspaper. First, snooty Brenda Carlton tells the girls they have no chance of winning -- then the notebook in which they wrote their mystery disappears!
The girls had a neat idea for a ghost story, and now another team may have stolen it. Things get weird when they find notes written in drippy red writing -- with words that come straight from their story! Is the make-believe mystery coming true?