Howie and Claire are hiking on the remote trail to Eagle Falls in the mountains of New Mexico when they find the body of a seventeen-year-old girl, Zia McFadden, floating in the river at the foot of the falls.

It looks like suicide. But could it be murder? Zia is the granddaughter of Charlie McFadden, San Geronimo's most famous author. When he hires Wilder & Associate to investigate Zia's death, Howie, Jack, and Howie's daughter, Georgie, find themselves on a baffling case that takes them on a roller-coaster ride of secrets and revelations and a deadly high-altitude adventure to discover the truth of what really happened at Eagle Falls.