Zac Gorman is a cartoonist and author from Detroit, Michigan. He worked as a storyboard artist on the Emmy-winning series Over the Garden Wall (Cartoon Network) and was nominated for the Annie Award for Character Design for his work on Welcome to the Wayne (Nickelodeon). He wrote for the Rick and Morty comic series published monthly by Oni Press. Thisby Thestoop and the Black Mountain is his debut novel. Sam Bosma is a sentient orb discovered in an abandoned mine, of average height and build (for an orb). He is also the award-winning creator of the Fantasy Sports comics (NoBrow Press), and has fashioned illustrations for the New Yorker, Scholastic, Hulu, and the Cartoon Network show Steven Universe. He currently lives and works in Los Angeles.