Justice League of America #236

In "Rebirth, Part Four — Conclusion: Gypsy Genius," the Justice League faces off against the menacing Overmaster and his Cadre in a frozen Arctic stronghold. With help arriving from Dale Gunn and Gypsy, the team uncovers the shocking truth: the Overmaster is not who he seems, but a parasitic entity feeding on his host. The battle reaches its climax as the alien ship erupts from the mountain and vanishes into space. Written by Gerry Conway and illustrated by Chuck Patton, with inks by Rick Magyar, colors by Gene D'Angelo, and letters by Ben Oda, the cover by Chuck Patton and Dick Giordano captures the intensity of the moment.