This is a Dean Koontz book written under a pen name.
from the back:
It is a year since Tina Evans lost her little boy Danny in a tragic accident...a year since she began the process of forgetting, of trying to go on.
But today this shocking message appeared on the blackboard in Danny's room: NOT DEAD HELP ME
Was it someone's grim joke? The tangible evidence of her own tormented unconscious? Or something.....more?
The search for the answer will begin now.. A search that will drive a beautiful anguished woman and her compassionate lover through the neon clamor of Las Vegas nightlife, the sun scorched desert, the mighty shadows of Boulder Dam and the frozen towers of the High Sierras.
People will die now, coldly, brutally, while a buried truth struggles to the surface...a truth so incredible, so frightening, so dangerous that its secret must be kept at any price.