time-travel fiction

When, in the process of testing his newest time machine, Professor von Volt accidently brings a triceratops, Helen of Troy, Attila the Hun, Charlemagne, and Christopher Columbus to present day New Mouse City, it is up to Geronimo and his friends to return them all to their own times and places--without being eaten by a T-Rex or skewered by Trojan warriors.

". . . Billy Stuart and his loyal Scout group have inadvertently traveled through time and are lost on a remote island inhabited by creatures from another land"--Provided by publisher.

Billy Stuart, a raccoon, and his scout friends travel through time to ancient Greece where they encounter the Minotaur.

"Billy Stuart and his loyal Scout group have inadvertently traveled through time and have to cross an ocean full of danger"--Provided by publisher.

While a boy tries to face his bedtime fears, his stuffed rabbit, Floppy, tells a secret about his bed, which soon takes them to a play date with a dinosaur.

"A 31st-century boy and a 21st-century girl team up to save the universe, evade an evil race of bog mutants, and make a quick pit stop to visit the moon"--Provided by publisher.

"Zoe has lost her best friend. She and Laura used to do everything together -- take silly selfies, join the same clubs, even throw surprise birthday parties for each other. But lately things have been weird. Laura's posting photos of herself hanging out with other girls. She isn't returning Zoe's texts. She doesn't even sit with Zoe at lunch anymore, Zoe is heartbroken -- all she wants is for things to go back to normal. Then a magical app downloads on her phone ... and thing get even weirder. Suddenly Zoe can travel back in time to the exact moments when their friendship began to fall apart. It's a dream come true -- Zoe can fix things, and she and Laura can be friends again!"--Jacket flap.

"Will Robinson stumbles upon a portal back to Earth and his past and triggers a series of events that could change his present and the future"--Provided by publisher.

"On a field trip to the art museum, the Cool Schoolers notice that the nose is missing from the Sphinx! Drew Pendous uses his Mighty Pen Ultimate to sketch a time machine, and he and Ella travel back to ancient Egypt to investigate. Drew's evil twin Ray Blank has rewritten history by erasing the nose! It's up to Drew and Ella to stop Ray and set the timeline straight"--OCLC.

"The reader's choices determine whether three friends will survive after being mysteriously transported back in time to when huge insects swarmed the skies and fearsome dinosaurs ruled"--OCLC.