London, Andrew Melrose, 1912. First edition, first impression. Paperback. A near fine copy. "A future war tale that pits Germany against Great Britain in 1916, mostly at sea." [Clute, SFE]. Uncommon. Very well preserved with just a little toning to the wrappers and some peeling to the paper cover. Cover art by E. Lander [?] [11868, Hyraxia Books].