Abbie Bradford is at a crossroads. Fresh off earning her doctorate in history, she’s unsure of her next move—until bestselling novelist Emma Caulfield, an acquaintance of her brother, presents an irresistible challenge: join her on a grueling trek from Kathmandu to Everest Base Camp in Nepal.

When the adventure takes a deadly turn, Abbie starts to question Emma’s true motives as she finds they may hold the key to unraveling a century-old mountaineering mystery—if they can survive long enough to solve it.