Rules of Frost by Brendan Duffy

Rules of Frost by Brendan Duffy is a chilling psychological thriller that combines an isolated boarding school, troubled teenagers, and a mystery that grows increasingly sinister. English teacher Jon Sayers is filling in as a dormitory supervisor when thirteen-year-old Sam is found dead on a frozen pond. Initially believing it was an accident, Jon soon becomes suspicious when strange incidents begin occurring around the nearly deserted campus. With an approaching ice storm cutting off escape, he must protect the remaining boys while uncovering the truth behind their secretive games and disturbing rituals. Jon is a compelling protagonist whose responsibilities as a teacher clash with his growing fear and personal demons. His own secrets make him question his judgment, adding another layer of tension to an already unsettling situation. Although his son isn't central to the main mystery, Jon's role as a father adds depth to his character and highlights the protective instincts that shape his decisions. Duffy delivers an atmospheric, suspenseful thriller with a satisfying payoff. A strong choice for psychological thriller fans.