D&D and the Abominable Snowman

Delia and Delilah, the owners of D&D Consulting, solve problems with a supernatural twist. Their motto is: "if you can't eliminate the impossible, then you turn to D&D", and now they have a new case.
Accidents have been plaguing the hedonist resort, 'Pleasure on the Peaks'. At first the accidents are nothing more than nuisances, like the lines of the ski lifts snapping or the windows breaking, but when a bunch of butts get pickled in a hot tub, the situation starts to look bleak.
Then a 'monster' attacks a swinger party, and the future of the resort is in doubt.
But is it a monster? Gene Carpenter, the owner of 'Pleasure on the Peaks', doesn't think so. She thinks that the ghost of her dead partner and lover is attacking the resort.
Can Delia and Delilah figure out which it is, monster or ghost? And if they can discover what is haunting 'Pleasure on the Peaks', can they hope to stop it?