Not the Charlton/DC Super-Hero...
...but a scientific adventurer in the the vein of Doc Savage or Captain Video!
Can Captain Atom and his entourage escape?
Will they become a permanent part of the tomb, to be found centuries later by future archeologists?
The reason the panels in this never-reprinted comic from the short-lived Nation-Wide Publishing are so large is that the book itself was only 5 inches wide x 7 1/4 inches tall.
These 52-page digest-sized comics were only 5 cents (half-price) compared to normal-sized 10-cent comic books.
And, yes, the shorts and bare legs were Captain Atom's standard garb, not just desert-wear...