Attending the annual Greek mythology gala at Oracle College, Nancy, Bess, and George race to assist when a student falls from a balcony in the middle of her speech, an accident the sleuthing trio links to collegiate sabotage.

When someone steals the proceeds of a charity gala aboard a restored riverboat, it's up to Nancy, Bess, and George to find the thief before the clock runs out.

When Detective Gordon retires and Buffy is left alone at the police station, she hears strange noises and decides to call on Gordon to help her with the mystery.

Seventh-graders Sloane and Amelia are devastated to be paired for a research project about long-lost jewels, but soon they are finding clues hidden for nearly a century--and realize they are being used.

The junior sleuth and his able assistant, Sally Kimball, are back in harness, finding a stolen painting and a missing song script, exposing a crooked marathon, and solving other mysteries.

A mouse who lives in Sherlock Holmes' cellar evolves a daring plan to uncover the identity of a kidnapper.

After moving to Echo City, Charles finds himself at the mercy of the town's monsters, but lucky for him there is Margo Maloo, monster mediator.

Billy Dickens discovers that his mysterious father lives in Montana, so this summer Billy will fly across the country, hike a mountain, float a river, dodge a grizzly bear, shoot down a spy drone, and save his own father.

Twins Theo and Alexander and their sister Wil are abruptly dropped off at their Aunt Saffronia's house, where they learn they must complete a series of tasks in order to see their parents again--and their first assignment is at a waterpark.

"When Hazel Wong's beloved grandfather passes away, Daisy Wells accompanies her best friend...to Hazel's family estate in beautiful, bustling Hong Kong. But when they arrive, they discover something they didn't expect: a new baby brother for Hazel...BabyTeddy's nanny is killed, and this time Hazel isn't just the detective on the case. She's been framed for murder! The girls must work together to confront dangerous gangs, mysterious suspects, and sinister...