Here’s a review from Mike Myers. “Superman and Supergirl in Warworld” Written by: Len Wein Art by: Jim Starlin and Romeo Tanghal Letter: Ben Oda Colorist: Jerry Serpe Editor: Julius Schwartz 2nd Appearance of Mongul; continued from issues 26 where Superman teamed up with Martian Manhunter Story takes place after Mongul obtains a key for…