Eleven-year-old Jeremy Johnson's life changed the day he received a plain brown box with a letter and a bizarre, magical creature inside. Thrown into a club that requires him to solve confusing riddles...

How can the detectives keep landmarks and symbols of the city of San Francisco safe from a man who wants to cause world-wide financial chaos, or perhaps just have the world's most awesome train set? Devon...

Parisian art and landmarks are disappearing! The members of the Travelers Detective Club are in France, trying to outwit far-right radicals who are trying to cause chaos and take over the government....

The Grand Wizard is dead, his powers transferred to a stuffed eagle who appears on the front porch of a ten-year-old in Philadelphia. Travis and his friends must confront an evil warlock intent on stealing...