London, Hodder & Stoughton, n.d. [1912]. First edition, first impression. Hardback. A near fine copy. A mad scientist tale. Hubin [434]. A fairly solid copy overall. With just a little rubbing, tanning and wear to the jacket. Spine tips bumped and toned, edges toned. Some offsetting and very light foxing. [10766, Hyraxia Books].