First Edition. G. Hartmann dustjacket art. Rare mystery novel of “gun-fire and airships, of love and revenge,” involving a pilot who sets out to avenge his father’s death by finding the five men responsible. Very Scarce first edition by this pseudonym of Raoul Whitfield, especially so in dustjacket. Near Fine but for signs of dampstain at fore-edge of front cover, in dustjacket with stain to right quarter of front panel, few small edge chips.