The river at night : a novel
(Book)

Four female friends pushing 40 decide to spend their vacation white-water rafting in a remote corner of Maine. Winifred "Wini" Allen isn't keen on the idea, but she goes along to be with Pia Zanderlee, who arranged the trip, and two other close friends. Wini also needs to get away--her brother has recently died, her husband has left her, and she despises her job as a graphic designer for a Boston-based food magazine. Pia has hired a hunky 20-year-old Maine college student, Rory Ekhart, to be their guide. The river outing has barely begun when tragedy strikes and the group is left without their raft and most supplies. But battling nature pales when they realize that they aren't the only people in the area.