Meg Murry and her friends become involved with unearthly strangers and a search for Meg's father, who has disappeared while engaged in secret work for the government.

"In this illustrated novel for middle-grade readers, Billy Stuart and his loyal Scout group have inadvertently traveled through time and have to cross an ocean full of danger."--

The magic tree house takes Jack and his sister Annie to the Great Plains where they learn about the life of the Lakota Indians.

Molly Moon, reunited with her parents, is hypnotized by a mysterious turbaned gardener and eventually transported to India, where she meets not only a maharajah with a speech defect but also former versions of herself.

When ten-year-old Nolan and his little sister, Olive, find Ben Franklin in their kitchen, they do their best to guide Ben through the new world he helped form.

In one devastating night, violin prodigy Etta Spencer loses everything she knows and loves. Thrust into an unfamiliar world by a stranger with a dangerous agenda, Etta is certain of only one thing: she has traveled not just miles, but years from home. And she's inherited a legacy she knows nothing about from a family whose existence she's never heard of. Until now. Nicholas Carter is content with his life at sea, free from the Ironwoods-a powerful...

George and Harold are forced to contemplate a world without Captain Underpants.

Pulled through a glass that brings him back in time, Septimus Heap becomes the apprentice of an alchemist.

At the moment when Mabel wins Waddles the pig at the Mystery Fair, Dipper ruins his chance to impress Wendy. But when Dipper finds a way to travel back in time and changes his fate with Wendy, Mabel's fate also changes--for the worse. Then, when a prehistoric creature snatches up Waddles, it's up to the Gravity Falls gang to save him.

Patrick and his cousin Beth travel back in time to ancient Rome, where they meet Telemachus and help put an end to the spectacle of gladiators fighting to the death.