Join the shadowy Carapace Clavicle Moundshroud as he takes eight trick-or-treaters on an unforgettable journey to find their missing friend, Pip. Travel through space and time, from the tombs of ancient Egypt to the gargoyles of Notre-Dame Cathedral, all the way to the cemeteries of Mexico on el DiÌ?a de Los Muertos, the Day of the Dead. Is Pip still alive? And if so, can his friends save him from a ghastly fate before it's too late?

As an apprentice on a training mission to 1912 England, Dorrie takes a chance that could lead the Strongholders to the Lybrarians' fortress, Petrarch's library.

When he goes to spend the summer with his great-aunt in the family's old house, eleven-year-old Drew is drawn eighty years into the past to trade places with his great-great-uncle who is dying of diptheria.

After an especially rough tackle on the football field, Ash thinks he might be suffering some permanent damage, because suddenly stop signs are blue and always have been. After the second universe-altering hit, he drives a Beemer instead of a Dodge, and a pair of interdimensional twins promises him answers. The more universes he visits, the more Ash has to face perspectives he never thought to consider before, and the closer the universe gets to complete...

Having used their magic tree house to travel to India, where they must get a gift to help free the dog Teddy from a spell, Jack and Annie have adventures involving a tiger and other endangered jungle animals.

Jack and Annie travel in their magic tree house back to a Hawaiian island of long ago where they make friends, learn how to surf, and encounter a tsunami.

The first in a fantasy trilogy about Ethan, a boy whose lives as a regular student struggling with homework, and a Guardian of Time charged with fighting the forces of evil, begin to blur after his classmate Isabel is assigned as his apprentice.

Mason and Ty were once the very best of friends, like two nerdy sides of the same coin . . . until seventh grade, when Ava Petrakis came along. Now Mason can trace everything bad in his life to that terrible fight they had over the new girl. The one thing he'd give anything for is a do-over. But that can't happen in real life--can it? As a science kid, Mason knows do-overs are impossible, so he can't believe it when he wakes up from a freak accident...