The Spectre #28

Part five of six in the "Ghosts in the Machine" arc, this August 1989 issue delivers one of the most memorably unsettling covers of the run — the Spectre looming forward in his green hood, gaunt white face split into a wide, jagged grin, red eyes gleaming, with a single deadpan speech bubble reading simply "Boo." Tom Artis handles both pencils and inks on the cover, giving the Spirit of Vengeance a ghoulish, almost darkly comedic menace that's hard to look away from. With Doug Moench writing and the story building toward its sixth-part conclusion, this is a strong entry in a series that consistently pushed DC's supernatural storytelling in compelling directions.