Von Horn, too, had let them know the identity of theircreator, and thus implanted in their malformed brainsthe insidious poison of revenge. Envy and jealousywere there as well, and hatred of all beings otherthan themselves. They envied the ease and comparativebeauty of the very aged professor and his assistant, andhated the latter for the cruelty of the bull whip andthe constant menace of the ever ready revolver; and soas they were to them the representatives of the greathuman world of which they could never be a part, theirenvy and jealousy and hatred of these men embraced theentire race which they represented.

It really was such that Number Thirteen faced as he emergedfrom the professor's apartment.

"What do you want here?" he exclaimed, addressing NumberTwelve, who stood a little in advance of the others.

"We have come for Maxon," growled the creature."We have been penned up long enough. We want to be outhere. We have come to kill Maxon and you and all whohave made us what we are."

"Why do you wish to kill me?" asked the youthful man."I am one of you. I was made in the same way that youwere made."

Number Twelve opened his mismated eyes in astonishment.