Frank and Joe investigate the legend of Whalebone Island when they receive a warning concerning a sunken freighter

When a gang that uses parties as a cover for robberies victimizes a masquerade party Nancy is attending, the teen-age detective switches identity with her girl friend to solve the case.

Detectives' Row is full of talented investigators, but Toby Montrose isn't one of them. He's only an assistant at his uncle's detective agency, and he's not sure he's even very good at that. Toby's friend Ivy is the best sleuth around--or at least she thinks so. They both see their chance to prove themselves when the famed Hugh Abernathy announces a contest to choose the World's Greatest Detective. But when what was supposed to be a game turns into...

"Hamster Holmes and Dr. Watt want to help their friend Ouchy the Porcupine find his missing comb, but have trouble finding clues. Can a comb vanish into thin air?"--

Gnomeo and Juliet enlist the help of Sherlock Gnomes to solve the mysterious disappearance of London's garden gnomes.

Asked to locate a stolen necklace of unusual value, Nancy soon discovers that strange and dangerous people are responsible for the theft.

When a special autographed basketball is stolen, Cam Jansen uses her photographic memory to identify the thief.

After fox sisters Zelda and Ivy and their best friend Eugene watch the new Secret Agent Fox movie, they are inspired to do some detective work then practice their new skills when rain threatens their campout plans.

Ali Cross is back in the gripping sequel to Ali Cross, the best-selling mystery that introduced readers to detective Alex Cross' son. In Ali's toughest case ever, his friend Zoe is in trouble after Ali and his friends witnessed a crime in Anacostia Park, and it's up to Ali to figure out why Zoe is lying to the police-and who she's protecting.

Although preoccupied with Sarge's illness and other distractions, Jack Russell finds time to investigate a case of kitnapping.