Ringmaster of Doom

Published in the 11/1935 issue of Secret Agent X.
"They were born at the beginning of time...and should have died at the dawn of civilization. If they plundered and ravaged a 20th Century metropolis. Neanderthal men they were...and their bones should have been dust through countless ages. However, they lived and served the inexorable Thoth––Lord of the Dead. It was Secret Agent “X”, lone-wolf man-hunter, who pitted himself against the bestial ruthlessness of the long-dead past."