Marvel released Secret Wars beginning in 1984 so naturally DC's epic response is Crisis on Infinite Earths.  The sixth book in the 12-issue limited series, this issue features the 1st full appearance of the Anti-Monitor. It also contains the 1st appearance of Yolanda Montez as the Wildcat!  This Copper Age key book is graded 9.8 NM+ with white pages by CGC.