The Mystery Men of Mars

This vintage sci-fi novel is bound in royal blue cloth boards, with black lettering on the front and spine. Spine a bit faded/soiled, corners slightly bumped; inner pages are lightly browned, but most are clean. Includes letter from the publisher. Frontispiece and endpaper illustrations by A.C. Valentine. First of the four novels in the "Adventures in the Unknown" series. 216 pages; approx. 5"x7".
  • The Mystery Men of Mars
  • Carl H. Claudy
  • Grosset & Dunlap, 1933