THE BLUE GROTTO TERROR. New York: Grosset & Dunlap Publishers, . Octavo, pp. [i-vi] vii [viii] 1-234 [235-246: ads] [247-248: blank] [note: last leaf is a blank], inserted frontispiece with illustration by A. C. Valentine, original blue cloth, front and spine panels stamped in black, pictorial endpapers, top edge stained red, pictorial endpapers. First edition. Last of the four novels in the "Adventures in the Unknown" series. "... a series of first-rate juveniles." - Frederik Pohl in Reginald Bretnor (ed), Science Fiction Today, p. 22. Claudy wrote about twenty SF stories, "all for the magazine AMERICAN BOY. Four were revised and expanded into a series of juvenile novels with the general heading Adventures in the Unknown: THE MYSTERY MEN OF MARS (1933), A THOUSAND YEARS A MINUTE (1933), THE LAND OF NO SHADOW (1933) and THE BLUE GROTTO TERROR (1934). This was probably the most vigorous and imaginative juvenile SF book series up to that time." - Clute and Nicholls (eds), The Encyclopedia of Science Fiction (1993), p. 233. Claudy "represents one of the two authors writing before Heinlein (the other is Roy Rockwood) whose imagination and story telling ability still stand out." - Anatomy of Wonder (1987) 5-36. See Anatomy of Wonder (1981) 4-37. Bleiler (1978), p. 44. Reginald 03068. Stain at upper right front corner of front panel, else a very good copy in good four-color pictorial dust jacket with wear at edges and shallow loss at edges and several closed tears. (#152604).
No statement of printing on copyright page.