On a Midwestern campus in the 1960s, a charismatic guru and his young acolytes perform a secret ritual in a local meadow. What happens is a mystery—all that remains is a gruesomely dismembered body and the shattered souls of all who were present. Forty years later, one man seeks to learn about that horrifying night, and to do so he’ll have to force those involved to examine the unspeakable events that have haunted them ever since. Unfolding through their individual stories, A Dark Matter is an electric, chilling, and unpredictable novel that proves Peter Straub to be the master of modern horror.