Henry, Jessie, Benny and Violet Alden discover that a mystery surrounds the run-down yellow house on Surprise Island. The children find a letter and other clues that could lead them on the trail of the man who vanished from the house.

A family, snowbound in a vacation cabin, discovers adventure in surrounding wild life, three children they find in the snow, and a search for a lost recipe.

Grandfather arranges for the Aldens to take a trip to a deserted island, but when they arrive, they discover that Blue Bay Island holds a mystery and it's up to them to solve it.

Retells a Norse myth featuring Heimdall.

Shares the story of Loki, his reputation as a trickster, and how his battle with Heimdall ended the reign of the Norse gods and created the world of humans.

An illustrated episode from "The Wizard of Oz," in which Dorothy, a young girl living in Kansas with her Uncle Henry and Auntie Em, gets trapped inside the house during a cyclone and lands in a strange new world.

"The Aldens spend the summer on Grandfather's island! Joe, the island's friendly handyman, helps them with anything they need, but as the children continue to explore their summer home, they realize there is more to the island--and to their new friend--than meets the eye."--Publisher's description.