On a stop in Amsterdam with the circus, magical twins Mimi and Beezel set out to help their tutor's Uncle Hoogaboom and a handsome teenage movie star solve a mystery involving lost treasure and a shrinking coin.
Beezel and Mimi, twin sisters who are magicians with the Trimoni Circus, try to evade a sinister magician who wants to steal the magic coin which enables them to change one animal into another.
For a school assignment, a boy reluctantly writes a letter to Clunk of the planet Quazar, sending his older sister with it, but as more letters and packages are exchanged, he realizes that having an alien pen pal can be fun.
After spending summer vacation learning to be a real pirate at Camp Buccaneer, Marlon feels much better prepared to return to school and face Carla, the bully who has pestered her since kindergarten.
Mac McGerp, winner of the Best Burper first prize at the Tri-county Fair, and his good friend, Lido, try to figure out how to deal with the new repressive school principal.