Just got this one. It continues both the Beneath the Planet of the Apes storyline and the (longer) Terror on the Planet of the Apes storyline. It also includes a nice pictorial of Roddy McDowell getting his ape make-up on. Writers include Doug Moench, Abbie Bernstein and Gary Gerani. Artists include Mike Ploog and Alfredo Alcala. The cover is by Earl Norem.
Current collection