"Dead Reckoning" is a 7-page Ditko story that appeared in Charlton's SPACE ADVENTURES #11 . Amusing little story taking common themes in crime fiction of the time and pretty much just translating them wholesale to a science fiction setting (with the conceit that one of the characters is a fan of 20th century detective stories). A lot of fun, as contrived as parts of it are.
Ditko's very much doing his version of the EC style of the time, an influence which pops up occasionally in his work of this era, and one could easily see this story fitting comfortably in an issue of WEIRD SCIENCE, with the alien landscapes, sexy female lead and tale of treasure and betrayal.
Also, those floating lips on the splash panel, just creepy.
The usual links:
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Download public domain comics, likely including the one this story is from