Spawn of Hell — William Schoell

Such a peaceful little town…

Or so it appears when David Hammond and Anna Braddon arrive in Milbourne, CT where the horribly mutated body of Anna's brother has been discovered.

Nobody knows what caused Jeffery's death, or the mysterious disappearance of other townspeople over a period of time. Only one man has the courage to seek the truth, and in a subterranean cavern beneath Milbourne's quiet streets, he has come face to face with a horror beyond description. But he can never share his dreadful knowledge, for the sight has driven him insane…

It is David who finally stumbles on the true nature of the evil creatures, and despite his fear, he knows it is up to him to destroy the things themselves, and the bizarre conspiracy against mankind of which they form a hideous part.