Scourge of the Steel Mask (G-8 Air-War Thriller, G-8 and His Battle Forces, No 1)

From the very fires of Hell he came to wreak havoc and death on all civilization. G-8--America's Flying Spy--combats a fiend inhuman and barbaric--a fiend whose henchmen are the dregs of the Earth, and whose hate is fiercer than the forces of nature--The Steel Mask!