"Hero factory is under attack from an army of evil brains. Can the robot heroes stop them?"--Page 4 of cover.
- ISBN10 0606321136
- ISBN13 9780606321136
- Publish Date 15 July 2013
- Publish Status Out of Print
- Out of Print 6 April 2021
- Imprint Turtleback Books
- Edition Bound for Schools & Libraries ed.
- Format Hardcover (Library Binding)
- Pages 32
- Language English