Uncanny X-Men (1980) #170 VF 1st Callisto Cover

In Alaska, Scott finds himself falling for Madelyne Pryor, a woman who bares an uncanny resemblance to the deceased Jean Grey. Meanwhile, Storm challenges Callisto in a duel to the death for the right to lead the Morlocks, an underground society of mutants who live apart from the humans who fear and hate them. Plus, Rogue leaves the brotherhood of Evil Mutants and makes a decision that will change her life forever.

Stock image.