"Jack and Annie are whisked back in time by the magic tree house to meet Benjamin Franklin in Old Philadelphia"--

When Arthur is drafted into the Glorious Army of the Architect by Sir Thursday, he must survive basic training, avoid getting posted to the Front, and figure out how to free Part Four of the Will, while Leaf tries to banish Arthur's doppleganger on Earth.

Three ancient scrolls beckon high school student Aidan Thomas to enter a realm of knights, kings, and unusual creatures, but he must rely on instinct and his latent athletic ability to deal with the terror, tempest, and treason in this new world.

When Hyacinth Smith moves with her family to a new house, she discovers new friends and powerful enemies, and that her power with trees opens ways between worlds.

Continuing their adventures through space and time, Ben and his faithful dog, Ned, find themselves in the Mediterranean region in 1703, befriended by a troupe of traveling entertainers and relentlessly pursued by ruthless Barbary slave traders.

"From the New York Times bestselling author of The Atlas Six comes an intimate and contemporary study of time, space, and the nature of love. Alone with You in the Ether explores what it means to be unwell, and how to face the fractures of yourself and still love as if you're not broken. CHICAGO, SOMETIME-- Two people meet in the armory of the Art Institute by chance. Prior to their encounter, he is a doctoral student who manages his destructive thoughts...

Hannah resents stories of her Jewish heritage and of the past until, when opening the door during a Passover Seder, she finds herself in Poland during World War II where she experiences the horrors of a concentration camp, and learns why she-- and we--need to remember the past.

Jack and Annie are joined by Teddy and Kathleen as they travel to the snowy Land-Behind-the-Clouds, where they search for the eye of the Ice Wizard and attempt to help Merlin and Morgan.

"The magic tree house whisks Jack and Annie back in time to meet famed Roman emperor Marcus Aurelius!"--

Newly orphaned Peggy Grahame is sent to live with an eccentric uncle who leaves her largely to herself. She discovers that Uncle Enos' house is full of mysteries and ghosts, and Peggy becomes involved with the spirits of her own Colonial ancestors.