More and more sightings of a hairy, upright monster occur and Rebecca hears a shrieking in the night.

It’s gunned down by its creator but the amoral scientist who tried to cover up his escaped monster's doings attempts to silence her by strangling her.

Cindy Crosby in her review for Christianity Today said "what's missing here is the genuine keep-you-up-all-night suspense and fast pacing that made Peretti's earlier books, such as This Present Darkness, such page-turners.

The sheer volume of pages, improbable storyline, and prose troubles will disappoint readers of Peretti's earlier books.

"[2] John Mort in his review for Booklist said that Peretti was "better off writing about the weight of sin, as he did in The Oath.

"[3] Dean Moore in his review for Memphis Reads said that "Monster begins with a weekend camping trip that goes horribly wrong.