London, Noel Douglas, 1926. First edition, first impression. Hardback. A near fine copy. In the rare jacket, inscribed by the author to the front endpaper. A professor uses mind control to influence people to suicide. Uncommon inscribed and in the jacket. A little edgewear to the jacket, and some tanning. A little rolling to the edges and a few short tears. Some bumping to the spine tips and a little dustiness to the top edge. Seller's price sticker over the printed price on the flap. Cover art by Mendoza [11089, Hyraxia Books].