A body lies at the foot of one of the most formidable off-piste ski routes in Grondere, just as the cry of a wolf is heard for the first time in the Swiss resort. Accident or murder? The Police are baffled as to who could be behind the death of one of Grondere's residents. At least, for once, Lucy and her friends have no links to this new mystery. Or do they? As the wolf begins to make its presence felt, it turns out not to be the only predator in town. Lucy and her friends are about to find themselves at the heart of a cruel intrigue whose roots are far-reaching ... and dangerous.