The Grudge (Seacliff High Mystery #5)

Alyson and the gang head to a ski resort in the Colorado Rockies the week after Christmas. Before they even make it to the house they will be staying at for the week, they stumble across a body in the snow. When they realize that the body is one incident in a series of unusual occurrences, they decide to throw a little sleuthing in with their holiday plans.