As Principal Trenton concludes the annual first-day-of-spring-semester speech at Alabama’s Opportunity High School, Tyler Browne locks students inside the auditorium and commits a school shooting that leaves thirty-nine people dead. Narrated in four different first-person accounts, by seniors Autumn, Sylv, Tomas, and Claire, this book traces the fifty-five minutes, from 10:00 to 10:55 a.m., that encompass moments before, during, and after the horrific event. Throughout the novel, each character’s connection to Tyler is analyzed, painting a portrait of a trauma that extends beyond the confines of these chaotic moments and serving as commentary on the larger social consequences that everyone faces.