More than a hundred years later, Doctor Morpheus is still alive, as his life span is apparently much longer in his mutated condition, and he comes face to face with Superman. He traps Superman into his machine and transfers Superman's powers unto himself. He then seeks to conquer the 20th Century city of Metropolis by attacking people in broad daylight. Superman tricks Morpheus into a deathmatch, luring him back to the Morpheus mansion on the basis his powers need to be recharged. Superman uses his heat vision to meld the hatch to Morpheus' machine shut, effectively imprisoning Morpheus for good, and remarking "That is the last monster Morpheus will ever make".