The untold story of how Mr. Mxyzptlk used Superman’s own emotions against him is revealed in DC RETRO-ACTIVE: SUPERMAN-THE '70s. In this all-new story by Martin Pasko, Eduardo Barreto and Christian Duce, Superman learns the hard way that without rest, even he can start to slip up. Meanwhile from the 5th dimension, Mxyzptlk works his devious magic to manipulate Superman and turn him into his own worst enemy. DC RETRO-ACTIVE: SUPERMAN – THE '70s also includes a classic story originally published in the ‘70s written by Cary Bates and featuring art by Curt Swan. This Wednesday, take a glimpse into Superman’s past.