Lunella Lafayette is a preteen genius who wants to change the world, but lives in fear of the Inhuman genes inside her! Now, Lunella's life is turned upside down when a red-scaled beast is teleported from the prehistoric past to a far-flung future we call...today! Together they're the most Marvelous Team-Up of all — Moon Girl and Devil Dinosaur! But will they be BFFs forever, or just until DD's dinner time? And Lunella soon learns that there are other problems with having a titanic T-Rex as a pet in the modern-day Marvel Universe. School, for one. Monster hunters are another — especially when they're the Totally Awesome Hulk! Then there's the fact that everyone's favorite dino didn't journey through time alone. Beware the prehistoric savages known as the Killer-Folk — New York City's deadliest tourists!