America’s enemies have assembled squadrons of flying furies, exploding skeletons, and invisible airplanes to turn the tide of the First World War. But when things get weird, we get Strange. Captain Philip Strange, that is—ace pilot and so-called “Brain-Devil” of G-2 Intelligence. His assignment? Journey from the back-alleys of Paris to the skies over Germany, taking down flying fortresses, cursed aerodromes, strafing skulls, and other wild weapons of mass destruction! This fourth volume of Philip Strange missions includes seven thrilling Satan's Staffel, The Vanishing Staffel, Hoodoo Drome, The Skull Staffel, The Skeleton Barrage, Staffel of the Starved, and The Staffel Invisible.
Donald Edward Keyhoe (June 20, 1897 – November 29, 1988) was an American Marine Corps naval aviator and writer of aviation articles and stories. In the 1950s, Keyhoe became a UFO researcher and writer, arguing that the U.S. government should conduct research into UFO matters, and should publicly release all its UFO files. [Wikipedia]