It by Stephen King

Stephen King’s classic #1 New York Times bestseller—the inspiration for the hit films It: Chapter One and It: Chapter Two, and the upcoming HBO Max series Welcome to Derry—returns with a chilling story of friendship, memory, and unimaginable evil.
Welcome to Derry, Maine—a small town that feels eerily familiar… yet in Derry, the horror is real.
Decades ago, seven teenagers discovered an unspeakable terror lurking beneath their town. They faced it once and swore an oath that if It ever returned, they would come back. Now, twenty-eight years later, the murders have started again, and the group must reunite to confront their deepest fears and the monstrous evil that has haunted them since childhood.