juvenile fiction / mysteries & detective stories

Middle schoolers Florian and Margaret are determined to catch a spy who is implicating their FBI supervisor, Marcus Rivers, in a variety of crimes--even if they have to break into, and out of, the Library of Congress to do it.

Nikki Tate's father has been on death row for killing his best friend in a gambling dispute, but he has always maintained his innocence, and now his conviction has been overturned and he is back at the casino, where high school junior Nikki has been operating illegal poker games in the hopes of saving enough money to get out of Vegas after graduation--and now he is determined to find the real killer, and Nikki is inevitably drawn into his dangerous search for the truth.

"Nancy and her Clue Crew meet Miss LaLa, a superstar who grew up in River Heights, and investigate what happened to the special hat she ordered for her concert at the annual Flower Sculpture contest"--OCLC.

While staying with his grandparents in Castle-on-the-Hudson, Charlie stumbles upon a mystery but must learn American Sign Language to keep up with Frog, a deaf girl who wants to help solve it.

In Washington, D.C., twelve-year-old Florian Bates, a consulting detective for the FBI, and his best friend Margaret must uncover the truth behind a series of private middle school pranks that may or may not involve the daughter of the President of the United States.

"On an island off the south coast of Victorian England, fourteen-year-old Faith investigates the mysterious death of her father, who was involved in a scandal, and discovers a tree that feeds upon lies and gives those who eat its fruit visions of truth"--Provided by publisher.

As ten-year-old Gwyn searches for a missing neighbor in her new town in Iowa, she learns much about her mother, who grew up there but has suffered from memory loss since Gwyn was four.

When strange weather occurs at his reform school, aspiring thief Mattie Larimore must save the world from chaos.

"Someone is secretly renovating the basketball court at the local park, and Zach and Zoe are determined to find out who"--Provided by publisher.

Eight-year-old twins Zach and Zoe follow clues to find Zach's missing baseball, signed by his favorite major league player, while competing in Spirit Week events at school.