Mr. Freeze was finally able to awake and cure his wife. 1 / 8
However, Mrs. Freeze is growing more and more unstable -- and dangerous. 2 / 8
It turns out, that's because of the serum Lex Luthor gave Freeze. 3 / 8
The serum first appeared in the 2013 event Forever Evil. 4 / 8
In Forever Evil, Luthor unveiled B-0, his failed clone of Superman. 5 / 8
The B-0 serum is what Luthor gave to Freeze. 6 / 8
Nora will only become more of a danger, while her husband locked away . 7 / 8
Detective Comics #1016 is available now. 8 / 8