Silver Age: Challengers Of The Unknown — DC Comics
Issue: #1
OverviewThe "heroes living on borrowed time" return in a one-shot with a cover by the incredible Joe Kubert (Hawkman, Sgt. Rock, almost everything else)! Hearing that the evil Chronos(who is actually the Atom) is at Ivy University trying to take control of the mysterious "time pool," the redoubtable Challs race to the scene -- but their odds of success get pretty small when they get a taste of Pro...
Creators: John Costanza, Dan Raspler, Karl Kesel, Tony Bedard, Tom McCraw, Joe Kubert, Drew Johnson, Randy Elliott
Characters: Ace Morgan, Prof Haley, Red Ryan, Rocky Davis, Ray Palmer, Chronos
Story arcs: Silver Age