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Narrated by: Cynthia Farrell

Unabridged — 12 hours, 20 minutes

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Overview

From the #1 New York Times bestselling duo, renowned archaeologist Nora Kelly and FBI Agent Corrie Swanson investigate a mystery so enigmatic it may have no solution.

In 2008, nine mountaineers failed to return from a winter backpacking trip in the New Mexico mountains. At their final campsite, searchers found a bizarre scene: something had appeared at the door of their tent so terrifying that it impelled them to slash their way out and flee barefoot to certain death in a blizzard. Despite ...