While their family is away, Harold and Chester, a dog and a cat, are boarded at Chateau Bow-Wow where Chester becomes increasingly alarmed by the strange behavior of his fellow guests and the sudden disappearance of one of them.

This book was never meant to exist. No one needs to know the details. Just know this: there's a Merry, a Larry, a missing tooth, and a teachers' strike that is crippling Timmy Failure's academic future. Worst of all, Timmy is banned from detective work. It's a conspiracy of buffoons. He recorded everything in his private notebook, but then the manuscript was stolen. If this book gets out, he will be grounded for life. Or maybe longer. And will Timmy's...

"When twelve year old aspiring detective Devlin Quick goes on a fossil dig in the badlands of Montana, she realizes that she's uncovering more than just dinosaur bones, but clues indicating that a crime is afoot"--

Siblings Evan and Jessie must solve the mystery of a missing cherished family treasure while coming to terms with their beloved granother's unsettling behavior.

"Fourteen-year-old Daniel and his friends battle the Nobles of the new Noble Academy and attempt to defeat the Shroud once and for all"--

More mysterious cases for "America's Sherlock Holmes in sneakers" to solve for the standard twenty-five-cent fee. Solutions are included at the back of the book.

Ten brief cases in which the reader pits his wits against those of Encyclopedia Brown, an ingenious twelve-year-old detective.

A million dollars, or a clue? Police report a break-in at an elite hotel, and the suspects sound suspiciously like Amy and Dan. There's a car and speedboat chase and an angry mob! When there's a clue on the line, anything can happen.

After a series of robberies strike Half Moon Bay, sibling sleuths Nick and Tesla build robots out of household objects in order to catch the culprits.