THE MAN WHO WAS SEVEN ( #Novelette ) by J. Frederic Thorne #BlackMaskMagazine #1920 #BlackMask #Magazine #PulpMagazines #PulpMagazine #MysteryMagazine #MysteryStory #DectectiveMystery #LockedRoom #LockedRoomMystery #PulpArt #Genre #GenreFiction #GenreLiterature #ThePulpMagazinesProject #CoverArt #CoverIllustration #Art