Den, appearing as it did in Heavy Metal Magazine in 1977 and 1978, was an important influence on my early Dungeons and Dragons sensibilities. One of my middle-school friends had parents who allowed him to collect Heavy Metal. It seemed odd at the time, and still seems odd to me now, but I and the rest of his adolescent friends benefited from his rather permissive parents. D&D and Traveller sessions at his house would be regularly interspersed with surreptitious gawking at the images in Heavy Metal. Even then, Den was our favorite, along with Barbarella. This is the cover art from the second printing of Den. It added to our D&D sensibilities, as it was a fantasy tale from which to draw adventure inspiration, in addition to feeding our teenaged appetites for images of nekkid women. The cover has a very Barsoomian, Burroughs-esque vibe to it. That's probably because of the green monster and damsel.