Mary Hagen
After her husband is killed in Afghanistan, Ella Pierce quits her job as an engineer and returns to school to earn her Ph.D. in archaeology. Her first assignment after graduation is at a Fremont Indian dig in San Rafael Swell, Utah under the direction of her former major professor, Dr. Zach Moore. Excited about the prospect of spending three moths in his company and with the hopes of finding a Fremont site for the following year, she takes solitary hikes in the slot canyons of the Swell. On one spur of the moment rip, she discovers something horrifying--the body of the man who delivers supplies to her site. When a rock slide traps her in the cave with the dead man, her world is turned upside down. Her dreams for the future are lost. No one knows where she is. She faces dangers she never could have imagined and is not certain she will live if she cannot get out on her own.