In this version of the Jules Verne classic, Mateo, a young velociraptor, finds a puzzling artifact on his class's archaeological dig, which his famous uncle, Dr. Raptor, declares is a clue to the disappearance of the scientist Ernie Stegosaur. The Doctor, his lab assistant Darby, and Mateo follow the clue to the center of the Earth and discover a strange civilization inhabited by creatures called human beings.

Benjamin Harper lives in Los Angeles where he edits superhero books for a living. When he's not at work, he writes; watches monster movies; and hangs out with his cats Marjorie and Jerry, a betta fish named Toby, and a tank full of four rough-skinned newts. He tends a bog garden full of carnivorous plants and also grows milkweed to help save Monarch butterflies. His other books include the Bug Girl series, Obsessed With Star Wars, Rolling with BB-8, Hansel & Gretel & Zombies, and many more.