Masters of the Universe: Siege of Avion

In 1984, Mattel expanded the Masters of the Universe mythos with this single-issue comic, written by Michael Halperin and illustrated by Alfredo Alcala. The story pits He-Man and his allies against Skeletor's forces in a pivotal assault on the bird-like kingdom of Avion. As a standalone tale from the franchise's early era, it deepens the lore of Eternia beyond the toy line and animated series.