Gone, gone, the form of man!

A splash page "edited, written, and drawnin the dead of night by Jack Kirby"; "lettered and inked in the light of a full moon by Mike Royer". Etrigan, a yellow-skinned demon in red leotard and boots, is standing in front of a group of Mitteleuropean-looking houses at night, his cape swooshing dramatically behind him. His arms are raised (and foreshortened by perspective). "Go no further, o spawn of foul and tainted spells!" The figurs he's confronting cannot be made out, except for a single scaly hand.