On a class trip to the symphony, James "Gum" Shoo and his friends solve the mystery of the stolen flute.

Catalina “Cat” Duran and her friends thought they were on a field trip to see the seals at the aquarium. So why has the seal show been cancelled?

Cat and her friends are on a field trip to see seals. Why has the show been cancelled?

Egg finds out that caves are a perfect place for a mystery.

At the amusement park, things go wrong for Sam and her friends.

On a class trip to New Orleans, Catalina Cat Duran and her friends find themselves in the middle of a voodoo mystery.

In Washington, D.C. on a field trip, Egg Garrison and his friends solve a haunting mystery.

Told in their separate voices, sixteen-year-old Prince Oliver, who wants to break free of his fairy-tale existence, and fifteen-year-old Delilah, a loner obsessed with Prince Oliver and the book in which he exists, work together to seek his freedom.

Catalina "Cat" Duran and her sixth-grade class are on a bowling trip, but in one lane the ball keeps going mysteriously off track, so the four friends decide to investigate the problem.