detective and mystery stories

"Bertie Bradshaw never set out to become a spy. He never imagined traipsing around war-torn London, solving ciphers, practicing surveillance, and searching for a traitor to the Allied forces. He certainly never expected that a strong-willed American girl named Eleanor would play Watson to his Holmes (or Holmes to his Watson, depending on who you ask). Leaving behind a coded notebook, Bertie is determined to solve the mystery. With the help of Eleanor and his friend David, a Jewish refugee--and, of course, his trusty pup, Little Roo--Bertie must decipher the notebook in time to stop a double agent from spilling the biggest secret of all to the Nazis"--OCLC.

Seventeen-year-old Bridget is both an employee of author RM Haldon and his biggest fan, so when she starts to receive cryptic emails from him after he goes missing, she teams up with her friend to find Haldon.

"What do the queen bee, star athlete, valedictorian, stoner, loner, and music geek all have in common? They were all invited to a scholarship dinner, only to discover it's a trap. Someone has locked them into a room with a bomb, a syringe filled with poison, and a note saying they have an hour to pick someone to kill--or else everyone dies"--Provided by publisher.

Relates the efforts of teens Elayah, Liam, Jorja, and Marcie to solve a 1986 murder, and the actions of their then-teenaged parents leading up to the crime.

"The five Pathfinders search for the legendary Windrose treasure by solving puzzles in the mysterious caverns beneath the town"--Provided by publisher.

"It's a dark and stormy night when three sleuthing little girls get pulled into a web of mystery. They have mistakenly uncovered a secret society of some of the most famous female spies in history. A glamorous spy named Josephine Baker enlists the girls to find out who has kidnapped Chiquita, her precious pet cheetah"--Jacket flap.

When a fellow student is murdered, Jenna Dallas and Adam Cole, who discovered the body, launch their own investigation and discover that everyone in the community of Gardiners Bay has something to hide.

Estranged friends Ivy, Mateo, and Cal witness a murder while skipping school, and the only way they can solve it is by revealing what they have been hiding from one another--and themselves.

Ivy's best friend is traumatized by finding the dead body of a young man but as Ivy seeks answers, she learns that her small New Hamshire town hides many secrets.

Seventeen-year-old Dee secretly hosts a popular true-crime podcast but when a missing child seems linked to the disappearance of her best friend ten years ago, she considers revealing her identity to uncover the truth.