Nate the Great solves the mystery of the missing picture.

The High Rise Private Eyes, animal detectives, try to find the cat who stole their neighbor's binoculars.

When Nancy Drew and her friends go to a lake in New York to investigate reports of a woman gliding over water, they discover a treasure underwater.

After the new hydrofoil they are guarding is stolen, the Hardy boys face frequent danger in solving a mystery involving criminals who operate by signs of the zodiac.

Though scoffed at by Harold the dog, Chester the cat tries to warn his human family that their foundling baby bunny must be a vampire.

In the fading town of Stain'd-by-the-Sea, young apprentice Lemony Snicket has a new case to solve when he and his chaperone are hired to find a missing girl. Is the girl a runaway? Or was she kidnapped? Was she seen last at the grocery store? Or could she have stopped at the diner? Is it really any of your business? These are All The Wrong Questions.

America's Sherlock Holmes in sneakers continues his war on crime in ten more cases, the solutions to which are found in the back of the book.

Dink and his friends unearth the mysterious truth behind the envelopes incorrectly delivered to his house.

Cam, her father, and her friend, Eric, go to the library and soon Cam has a mystery to solve: her father's shopping list has disappeared. Cam decides to use her amazing skills to investigate and puts her photographic memory into action.