When the Terrigen Cloud finally finds Luna Lafayette, her transformation isn't what you might expect! Plus: The most wanted T. rex in NYC is running out of places to lie low - a problem that won't get any easier when our darling duo undergo a body swap! It's a big change-up that will see Luna spending a freaky Friday as Devil Dinosaur, and vice versa!

Contains material originally published in magazine form as Moon Girl and Devil Dinosaur #1-12. Chiefly illustrations.