SERGEANT SPOOK vs King Tut!

Sergeant Spook (which apparently was his real name before he died) has a very short and simple secret origin...and it contains a message: Smoking is bad for your health!

One night while working in the police crime laboratory, Sergeant Spook absent-mindedly laid his pipe next to a rack of chemicals. The chemicals exploded, killing the sergeant. Thus began his career as a ghostly crime fighter.

No real super powers (like, say, the Spectre), but although he was invisible to humans, he could still make physical contact with them. He also spent a lot of time hanging with his fellow ghosts in Ghost Town.

Sergeant Spook debuted in BLUE BOLT COMICS v1 #1 (June 1940) and held a regular spot through v7 #7 (Dec 1946). There were 27 more issues of BLUE BOLT COMICS, and Sergeant Spook made it into 17 of them (v7 #10-v10 #1, Mar 1947-Jul/Aug 1949). He also appeared in DICK COLE #1 (Dec/Jan 1948/49).

from
BLUE BOLT COMICS v1 #10 (March 1941)
story & art by Malcolm Kildale