Book 2

Jack Doyle, who can communicate with animals. is surprised to discover his little sister's tortoise hiding in his backpack during a field trip to a farm, and when Tut disappears, he has to use his special skill to find the pet in time.

Book 3

The big school trip was at the end of the week, and Jack couldn't wait. But someone kept playing pranks at school including dyeing the class guinea pig green, and Principal Bumble threatened to cancel the trip if the pranks didn't stop. Can Jack and Elizabeth solve the mystery in time to save the trip?