Mirror world /
by Greg Farshtey.
- New York, NY : Scholastic Inc., 2013.
- 139 p. ; 19 cm.
- LEGO hero factory. Secret mission ; 5. .
"A sabotaged experiment threatens to destroy all of Hero Factory. Stormer, Bulk, Furno, and Breez expect to give up their lives, but instead they wake up in another world--a world without Hero Factory"--From publisher description.