“You are my chosen apprentices,” said Mr. Leery.

Penny and Luke aren’t sure they want to be apprentice Keyholders. A Keyholder’s job, explains their neighbor, Mr. Leery, is to guard the border between the real world and the magical world.

But when they meet their “links”—magical helpers from the other side of the border—they change their minds. Penny’s link is Kirin, a sarcastic unicorn. Luke forms a link with a clumsy baby dragon named Dracula.

And just in time! For the evil Queen of the Boggarts is determined to invade their world—and only the Keyholders and their links can stop her.