"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...

As a thank-you from Merlin and Morgan, Jack and Annie are sent on what should be a vacation at a luxurious resort in Cozumel, Mexico, but is, by mistake, an adventure with ancient Mayans, instead.

"It's another mission for the Good Guys Agency! Success can be sweet, but for the gang's friend Jalen, it's turned him bitter. Back in time the trio goes, this time to visit renowned entrepreneur Milton Hershey. Milton builds a chocolate empire, but his sweetest success isn't the business or even his chocolate. What's his secret? Can Jalen get a taste? And will Red get enough of chocolate? (Spoiler alert: probably not.)" --

Twelve-year-old Boomi accidentally travels back in time to 1986 Thumpton-on-Soar, England, where she meets her late father as a child, changing her life forever.

A magical coin coin leads sixth-graders Ruthie and Jack to 1753 Massachusetts and to Jack's pirate ancestor when they return to the Art Institute of Chicago's miniature Thorne Rooms on a mission to restore an African American family's reputation.

Regan Fitz and Elliot Mason have been enemies since they started training to become Glitchers--people who travel through time to preserve important historical events. But everything changes when they find a letter from Regan's future self, warning them about an impending disaster that threatens them and everyone they know. Will they be able to set aside their past in order to save the future?--Amazon.com

A brother and sister receive a strange Hanukkah gift and family heirloom--a magic dreidel that takes them back in time to learn about the true meaning of Hanukkah.

Jack and Annie travel in their magic treehouse to the year 1621, where they celebrate the first Thanksgiving with the Pilgrims and Wampanoag Indians in the New Plymouth Colony.

Forced to abandon Princess Elizabeth when Mary ascends the English throne, Rose sews elaborate gowns for Mary's upcoming coronation before violently escalating attacks on Protestants compel her to escape into her own time.

Travel through time to the world of the dinosaurs in this exciting prehistoric fiction series for children. Jamie has just moved to Ammonite Bay, a stretch of coastline famed for its fossils. He’s a member of the Dinosaur Club--a network of kids around the world who share dinosaur knowledge, help each other identify fossils, post new dino discoveries, and talk about all things prehistoric.In this adventure, Jamie and Tess come across a diplodocus...