Shadowfires: Unbelievably tense and spine-chilling horror

Shadowfires is a novel by American writer Dean Koontz, released in 1987. Koontz's attempt at a straightforward horror novel, it was originally released as Shadow Fires under the pseudonym Leigh Nichols, and tells the story of a young woman who, in the process of getting a divorce from her husband of seven years, becomes a widow after a traffic accident. However, her husband's body soon disappears from the morgue, and other bodies are discovered, murdered horribly. The woman, Rachael, and her significant other, Ben Shadway, find themselves learning a secret too terrible for anyone to believe, followed by forces who wish to silence and kill them.