After the third transformation Pollard's ambition is to enslave humanity and turn the Earth into a vast laboratory for his own use, but as the transformations proceed he moves beyond such desires, with only intellectual curiosity remaining. The penultimate stage finds Pollard transformed into a vast, naked telepathic brain that feeds on pure energy. A final use of the device, to Wright's shock, leaves Pollard a pool of protoplasm, apparently bringing the evolution of humanity full circle back to its beginning. Dutton goes mad with horror and wrecks the laboratory, and Wright barely pulls him out before it, and Pollard's house, go up in flames.