FBI agents Fox Mulder and Dana Scully investigate a series of mysterious disappearances among loggers working in an ancient, remote forest. Tasked with uncovering the truth behind the vanishing workers, the duo must navigate the tension between Mulder's belief in the paranormal and Scully's commitment to scientific skepticism. As they venture deeper into the timberland, they face an elusive, predatory threat that thrives in the darkness. The narrative follows their investigation as they attempt to survive the night and identify the source of the terror before they become the next victims.

This novel captures the signature tone of the television series by balancing investigative procedural elements with supernatural dread. The narrative relies on the established chemistry between the two protagonists to ground the more fantastical aspects of the plot. Readers familiar with the source material will recognize the familiar rhythm of Mulder's theories clashing with Scully's empirical observations. The setting serves as a claustrophobic backdrop that heightens the sense of vulnerability for the characters as they confront an unknown entity.