When Evan swallows Monster Blood and turns into a hulking giant, he must find an antidote or spend the rest of his life trying not to step on his friends.
- Genre: Juvenile Fiction
- Subgenre: Horror + Ghost Stories, Humorous Stories
- Age: 9-12 years
- Publisher: Scholastic Paperbacks
- Language: English
- Format: paperback
- Release Date: February 1, 2007
- Date Published: February 1, 2007
- Author: R. L. Stine