THIS week we have a story by another of our favorite authors—Harold F. Cruickshank! Cruickshank is popular in these parts for the thrilling exploits of The Sky Devil from the pages of Dare-Devil Aces, as well as those of The Sky Wolf in Battle Aces and The Red Eagle in Battle Birds. He wrote innumerable stories of war both on the ground and in the air. From the premier issue of War Aces, Mr. Cruickshank gives us a story of the first installation of machine guns on planes—while not strictly factual, it’s a ripping good read! From the April 1930 issue of War Aces, it’s Harold F. Cruickshank’s “Guns of Mystery!”

It was the unpardonable sin to mount a gun on a plane, but when a blazing path of steel traced itself across his wings Kelly felt icy fingers on his heart and knew that a new horror was winging through the air.

• Download “Guns of Mystery” (April 1930, War Aces)