PD Bell is one of the best extreme skiers on the planet and Mallory Prescott is used to his exploits. This time Bell is taking on the West Rib of Denali, highest and most dangerous mountain in North America. It's a feat that has never been accomplished. Five years ago, Bell had tried it. The attempt nearly killed him.

While he's gone, Mallory begins to question her relationship with Bell. Does he love her? What has loving him cost her? Should she have married her childhood sweetheart, Creche Crèche, who remains her dearest friend? Mallory's choices are thrown into stark relief when her daughter Emily takes a terrible fall. She faces the biggest challenge in her life as she works her way through a maze of uncharted territory at a hospital miles from home.