It is called the "death zone": the point on Everest, nearly five miles high, above which a climber cannot be rescued. More than 250 souls have lost their lives there. Most of the bodies remain, abandoned, frozen in place. When an earthquake leads to a miraculous recovery, Dr. Temperance Brennan is hired to identify a frozen, mummified human corpse. The victim is the daughter of a wealthy Charlotte couple who never got the chance to say good-bye. But far from offering solace and closure, Tempe's findings only provoke more questions. What happened on Mount Everest? Was the young woman's death an accident? Why aren't the other climbers talking? And how far will those hiding the truth go to make sure the past stays buried?