Here Flies the Hawk of Hell

Published in G-8 #86, 11/01/1940
[Doktor Krueger returns! The little fiend has bred a new species of creatures called Drache – bird/ lizard/ dragon beasts who are pretty deadly on their own terms but which also come with a fringe benefit. That fringe benefit is the poison gas their mouths secrete and which Krueger is bottling for use as a powerful biological warfare agent.]