Icy Terror — Dorothy Baughman

After her father's tragic death, Barri Chambers was pleased to be invited to her aunt's ski lodge in Vermont. She was happy to meet attractive Toby Dennis, the lodge's ski instructor. But soon there were strange chills running down Barri's spine, and they had nothing to do with the freezing Vermont weather. Rather, they were chills of terror that began when Barri found a note warning her to go away from Snowflake Lodge. The terror continued when she had a couple of accidents...that had been deliberately arranged by some evil-wisher connected with the lodge.

Then someone was murdered, and Barri wondered if the same grim fate would be hers.