Dr. Maniac vs. Robby Schwartz is the fifth book in the Goosebumps HorrorLand book series. It was first published in 2008. The book follows Robby Schwartz, a techno geek and the creator of a popular web comic, discovers that his creation, a villain called Dr. Maniac, has somehow come to life and is stalking him and his family. The cover shows Dr. Maniac coming out of a computer.