While visiting Dink's uncle in New York City, Dink, Josh, and Ruth Rose help uncover who is responsible for stealing a very valuable painting.

Dink and his two friends help Lucky find the culprit who stole Lucky's winning lottery ticket.

Baby Monkey, private eye, will investigate stolen jewels, missing pizzas, and other mysteries--if he can manage to figure out how to put his pants on.

Josh and his two friends look for the person who stole a peregrine falcon from its nest.

Fifth-grade sleuth Cam Jansen uses her photographic memory to solve a monkey-smuggling mystery at the city zoo.

The photo on the card shows a boy who was found murdered, a year ago, on the grounds of a girls' boarding school in the leafy suburbs of Dublin. The caption says I KNOW WHO KILLED HIM. Detective Stephen Moran has been waiting for his chance to get a foot in the door of Dublin's Murder Squad -- and one morning, sixteen-year-old Holly Mackey brings him this photo. "The Secret Place," a board where the girls at St. Kilda's School can pin up their secrets...

The local police prove unhelpful when a 500-pound dinosaur skull vanishes from a secret excavation on Sage's family's ranch, so Teddy and his friends conduct their own investigation.

A fifth-grader with a photographic memory and her friend Eric help solve the mystery of the stolen diamonds.

Nancy receives a letter meant for a British heiress who has the same name and, in her attempts to contact the other young woman, faces danger from a man who operates a Lonely Hearts Club mail fraud.

A fifth-grader uses her photographic memory, her mother, and her friend Eric to find a missing reel of a monster film they go to see.