Dino-Mike and the Jurassic portal

"Mike Evans goes through the time portal to find his friend Shannon and her troublesome brother Jeff, but he soon finds they all have bigger problems--a robot who wants to repopulate the Earth with dinosaurs and a group of Tyrannosaurus rex babies who remember Mike from New York."@en
"Dino-Mike finds a portal to the Jurassic period in this chapter book adventure! Young Michael Evens and a new friend need to return real dinosaurs to their own time period. Can Dino-Mike and his friend survive this blast to the past? On their journey they will encounter a stegosaurus, a brachiosaurus, and the biggest, baddest T. rex that Mike has ever seen! With easy-to-read language and illustrations on nearly every page, Dino-Mike chapter books are perfect for beginning readers. Written and illustrated by the Eisner-Award winning creator of Tiny Titans, Franco!. Ages 7+"