New York: Green Circle Books, [1936]. pp. [1-6] 9-320 [321-322: blank] [note: last leaf is a blank; text complete despite gap in pagination], jacket illustration by Ancona (Edward D'Ancona), original brown cloth, front and spine panel printed in black. First edition, later binding. Variant binding issued by Macaulay publishers with Green Circle sheets. The binding format is the same save for Macaulay and their logo stamped at the base of the spine. Science fiction horror novel of radio communication with Mars and a "frightening but plausible visitor from the Jungles of Mars to the world, whose presence in the old spooky castle of an eccentric millionaire-scientist on Long Island causes great fear to its inmates when night falls."– publisher's blurb. [Reference: Locke, A Spectrum of Fantasy Volume II, pp. 44-5. Bleiler (1978), p. 71. Reginald 05252].