The magic tree house takes Jack and Annie to Antarctica to search for the fourth secret of happiness for Merlin.

Jack and Annie travel back to nineteenth-century Ireland to inspire a young Augusta Gregory to share her love of Irish legends and folktales with the world.

Jack and Annie travel to a monastery in the Swiss Alps where, with the help of St. Bernard dogs and magic, they seek the second of four special objects necessary to break the spell on the wizard Merlin's beloved penguin, Penny.

Jack and Annie visit the Paris World's Fair of 1889 in an effort to protect four scientific pioneers from an evil sorcerer.

Big Anthony disguises himself as a girl in order to take magic lessons from Strega Nona.

A child has a wonderful time collecting treats from the wacky neighbors until Magic Merlin decides that a trick would be more fun.

Lulu the rhinoceros is good at building things and once Fred the rabbit finds a magic toolbox, he can build things too.

When Pish and Posh discover fairy magic, they face a series of wacky surprises.