Blood Brothers by Nora Roberts

Sign of Seven Trilogy, Book 1

In a small town steeped in mystery and legend, three childhood friends—Caleb, Fox, and Gage—find their lives intertwined by a dark secret that resurfaces every seven years. As an ancient evil awakens, threatening to engulf their community in chaos, the trio must confront their past and harness their unique abilities to combat the malevolent force. With the help of three women who share a mysterious connection to the town's history, they embark on a perilous journey to unravel the truth and break the cycle of terror that has plagued their lives for generations.