Hollow Earth: A Coloring Book

From the artist behind the world of Cartoon Network's Adventure Time, a detail-packed coloring adventure into the deep, dark, and hidden places within our planet. Expand your mind and your creativity with this wildly imaginative adult coloring book. Explore the maze of caverns, ancient insectoid temples, spooky reptilian swamps, juicy alien jungles, and forgotten cryptid cities that exist beneath our feet. You will bring these alien worlds to life as you color them in, with the pages progressing deeper underground as you go. If you're not careful, you may not find your way out again.

Who might be interested in reading?

• Fans of Adventure Time and other works by Ghostshrimp.
• Individuals who enjoy creative and imaginative coloring books.
• People fascinated by underground worlds and hidden places.
• Adults looking for a relaxing and artistic escape.