Title: The Cage of Doom
Credits: Otto Binder (Script), Curt Swan (Pencils), Jack Abel (Inks).
Title: The Face Behind the Lead Mask
Featuring: Tales of the Legion of Super-Heroes
Synopsis: The Legion of Super-Heroes releases Mon-el from the Phantom Zone to help them battle Urthlo, but afterwards he has to go back in.
Character Appearances: Superboy, Lightning Lad, Sun Boy, Cosmic Boy, Saturn Girl, Mon-El
Credits: Jerry Siegel (Script), John Forte; Al Plastino (page 4 and some Superboy and Luthor heads only) (Pencils), John Forte; Al Plastino (Inks), Milton Snapinn (Letters).