I'm sad to report that this may be the Lyingest Comic Book Cover Of All Time:
--Who is Tom?
--How was he executed?
--How does the guard recognize the leg so quickly?
--Why is everyone so scared of a leg? Can't the guard just whip it? They can probably out-run it.
--What's the leg's big plan for revenge--kick everyone to death?
These questions, and more, ensure I would have read the hell out of that story...if it actually existed!
In the small consolation department, the issue does contain this little gem:
Not the same as an executed leg, though...
From Dark Mysteries #13 (1953)