Phryne, Dot, Aunt Pru and Dr. Mac head off to the mountains for Christmas in July and a bit of skiing. They arrive at their lodge to learn that Len Fowler had died that morning, electrocuted while stringing lights on the Christmas tree. While everyone else thinks it's an accident, Phryne suspects murder, something that proves correct when Vera and Nicholas Mortimer are murdered. Phryne believes it all relates to an accident at a nearby mine a decade ago - and it soon becomes obvious the killer plans on doing in everyone in the lodge.
—garykmcd