"The Spectacular Spider-Ham is back and just in TIME to save the past, present, and future. It's just a normal day in the life of Peter Porker, your friendly neighborhood Spider-Ham! Keeping New Yolk City safe from dastardly villains is no easy feat, especially when the Green Gobbler from the year 2099 travels back in time to team up with his present-day counterpart. Talk about a pair of rotten eggs! What's worse, Spider-Ham gets flung into the future,...

Ronnie is just a normal fifth-grader trying to pass her science class's impossible quiz on the history of dinosaurs... until she happens upon her neighbor -- Ms. Lernin -- a retired paleontologist. With the assistance of Science Magic, Ronnie and Ms. Lernin travel back through time and space to experience the Mesozoic Era firsthand. They visit three important time periods in the development of the Mesozoic Era: the Triassic, the Jurassic, and the...

After being sent to jail for the rest of their lives, George and Harold are taken on a trip back in time by Tippy Tinkletrousers back to their Kindergarten days where they must deal with their bully without the help of Captain Underpants.

Rush Revere and his friends head back in time to the early days of our independent nation to watch the Founding Fathers create the leadership we needed for our future. -- back cover.

"Meet Jamie, a member of the Dinosaur Club. They are a network of kids around the world who love to share dinosaur knowledge, help identify fossils, post dino discoveries, and chat about all things prehistoric. Jamie has just moved to Ammonite Bay, a stretch of coastline famous for its fossils. He is busy exploring when he discovers some dinosaur footprints and is transported back to the time of the dinosaurs! It sounds like Jamie needs some help...

George and Harold have to figure out how to fix history in the tenth book in this #1 New York Times bestselling series by Dav Pilkey, the author and illustrator of Dog Man!

George and Harold have been turned into evil zombie nerds doomed to roam a devastated, postapocalyptic planet for all eternity! Unfortunately, the boys can't count on Captain Underpants for help because Tippy Tinkletrousers and his time-traveling hijinks prevented...

"Schoolmates Eric, Dominique, Ajay, and Josephine are in their homes getting ready for a normal school day after two successful time-travel adventures. But the day might not turn out to be so normal after all! The kids' parents remind them that today is Coronation Day, and when they get to school, they find the Pledge of Allegiance replaced with an Oath to the King. Clearly, something is amiss, and the only way to fix it is to return to the Smithsonian,...