Sorry about all the sick jokes, but beware the Ides of March and all that.
This is Terror Tales for June 1936, cover by John Howitt. The ISFDB entry for this issue is here. I found this version of the cover at Galactic Central, and it also appears in this Pinterest Terror Tales gallery.
Is that villain holding a whip? Seems redundant considering the fiery pit and all,no?
Like Redjak, he feeds on fear. He uses the whip to generate more terror in the victim.