Superman is hit with a prototype gravity device while trying to foil a heist at S.T.A.R.
Labs, resulting in his increasing his mass so he can barely move!
- Format: Hardback
- Pages: 32 pages
- Publisher: Capstone Global Library Ltd
- Publication Date: 10/08/2012
- Category: Educational: English language: readers & reading schemes
- ISBN: 9781406254020