The Avengers #309

In "To Find Olympia," the mythical realm of the gods is mysteriously pulled into the Negative Zone, throwing the Avengers into a cosmic crisis. With the Great Lakes Avengers making a delightfully oddball cameo, the team races to uncover the source of the anomaly before Olympus vanishes entirely. Written by John Byrne and illustrated by Paul Ryan, with inks by Tom Palmer, colors by Christie Scheele, and letters by Rick Parker, the cover by Ryan and Palmer captures the surreal scale of the mystery.