The Avengers #304

In "…Yearning to Breathe Free!", the Avengers face a powerful new threat when they cross paths with Puma, a genetically enhanced Native American warrior hunting a rogue mutant from his own people. The young mutant, Charles Little Sky, unintentionally tears open a dimensional rift—releasing the long-exiled U-Foes into the world. Written by Danny Fingeroth and illustrated by Rich Buckler, with Tom Palmer’s inks, Christie Scheele’s colors, and Bill Oakley’s lettering, this 1989 issue delivers a tense, character-driven clash of legacy, identity, and unintended consequences. The cover by Kieron Dwyer and Peter Paul Prinz captures the moment of rupture with striking intensity.