High in the mountains of the Swiss Alps Leah Wilde is about to gamble her life to bring a powerful man an offer. A promise. Leah has heard the dark stories about him and knows she is walking into the lion's den. But her options are running out. Her rare lineage, kept secret for years, is under terrible threat. That is, unless Leah and her mother Hannah are prepared to join up with their once deadly enemies. Should the prey ever trust the predator? Is hope for future generations ever enough to wash away the sins of the past? With a new and chilling danger stalking them all, and the survival of their society at stake, they may have little choice...