His name is Thurston Kyle, a rich genius who loves mystery and adventure as Night Hawk. Wearing a flying suit of his own design, the feathered vigilante rules the skies, restoring the throne to a rightful king, foiling radium smugglers or outwitting a mad robot. This volume includes facsimile reprints of four original stories from 1931, and four new stories: Los Vampiros del Aire, The Mad Robot, Monkey Brains and The Headless Horsewoman.