Uncanny Tales. Vol. 2, no. 17 (May 1942)
Uncanny Tales presented a mix of stories, including science fiction, horror and fantasy. This cover by G.M. Rae may have been an attempt to appeal to all the magazine's audiences simultaneously. The damsel in distress would capture the horror reader's attention, while the strange creature ensnaring her and the underwater setting would appeal to a fantasy fan and the artificially preserved human head would bring in the sci-fi fans. Note that the creature is not an octopus -- it has only seven arms.