Scooting forward like a crab, it paused in front of an old, wood-frame basement window with its glass painted out, levered the window open with practiced ease, slithered through the opening into the darkness beyond, and was gone.

Inside, it dropped softly to the basement floor and waited for its eyes to adjust. It took only a moment, for the demon’s sight was as keen in darkness as in light. It saw with all its senses, unlike the human it had once been, unlike the humans it hunted. It despised the weaknesses of flesh and blood and bone it had long ago discarded. It despised the humanity that it had shed like a snake’s skin. It was not burdened by moral codes or emotional balance or innate sensibility or anything even approaching responsibility. The demon functioned in its service to the Void without any restrictions save one—to survive. It did not question that it served the Void; it did so because it could not conceive of any other way to be and because the Void’s interests were a perfect fit with its own. The demon’s purpose in life was to destroy the humans of whom it had once been part. Its purpose was to wipe them from the face of the earth. That it served the Void in doing so seemed mostly chance.

It stood motionless in the darkness for a long moment, then began to strip off its clothes. It would hunt better once it had transformed. Its human guise was uncomfortable and restrictive, and it served only to remind the demon of the shell it had been trapped inside for so many years. All demons were mutable and, given time, could become whatever they chose. But this demon was particularly adept. It could change forms effortlessly, which was not usually the case. Most demons were required to keep to the form they adopted because it took so long to build another. But this demon was different. It could change forms with the speed of a chameleon changing colors, rebuilding itself in moments. Its ability had served it well as a creature of the Void. It specialized in ferreting out and subverting the more powerful servants of the Word. It had destroyed many of them. It was working now at destroying John Ross.

Of course, it was only the part of Ross that was human that the demon sought to destroy. It would keep the rest. It would keep his magic. It would keep his knowledge. It would set free the dark underside that he worked so hard to contain and give it mastery over what remained of his spirit.

When its clothes lay on the floor, the demon began to change. Its human form disappeared as its body swelled and knotted with muscle and its skin sprouted thick, coarse hair. Its head lengthened, its jaws widened, and its teeth grew long and sharp. It took on the appearance of something that was a cross between a huge cat and a massive dog, but it resembled most closely a monstrous hyena—all powerful neck and sinewy shoulders and fanged muzzle.