Death Dream — Graham Masterton

It was a thing out of a nightmare. While mankind slept it stalked the dream-world, driving men to madness and death. The demon's bloodlust was terrible; its rage was unstoppable.

Decimating the realms of dreams was not enough -- the creature hungered for the waking world. Hidden in a child's nightmares, it emerged in a riot of slaughter. None could stand against it.

Until the Night Warriors arose, summoned by the demon's evil. Powerless in our world, in dreams they are virtual gods. In dreams they will confront the demon -- unless it finds and destroys their sleeping selves!