Instead of the usual vampires or werewolves or zombies, here's a horror story...
|Art by Sheldon Moldoff|
...with a different, more "science fiction", approach to terror, from the HTF Worlds Beyond #1 (1951) from Fawcett.
Did the writers of the movie Fantastic Voyage read this tale when they were younger?
The art is by comics legend Bob Powell, but the writer is unknown.
The cover, by Sheldon Moldoff, shows a cavern (with bats!) instead of the inside of a human being, and probably was meant for another story, but it conveys the mood of "Twice Alive", if not the plot points.
Worlds Beyond was retitled Worlds of Fear with #2 and ran for another nine issues.