The Hollow by Nora Roberts (Book 2 of the Sign of Seven Trilogy)
Synopsis : For Fox, Caleb, Gage and other residents of Hawkins Hollow, the number seven portends doom - ever since, as boys, they freed a demon trapped for centuries when their blood spilled upon the Pagan Stone. Their innocent bonding ritual led to seven days of madness, every seven years. But this year, they are better prepared, joined in their battle by three women who have come to the Hollow. Layla, Quinn and Cybil are somehow connected to the demon, just as the men are connected to the force that trapped it. Since that fateful day at the Pagan Stone, town lawyer Fox has been able to see into others' minds, a talent he shares with Layla. He must earn her trust because their link will help fight the darkness that threatens to engulf the town. But Layla is having trouble coming to terms with her new found ability - and with this intimate connection to Fox. She knows that once she opens her mind, she'll have no defense against the desi...