Tsalal is an Arctic research base outside the town of Ennis, Alaska. It is now close to the winter solstice, resulting in days with 24 hours of darkness. When the entire research team disappears there appears to be a link to a murder that occurred several years before. On the case is the Ennis Chief of Police, Liz Danvers, and Evangaline Navarro, a Police trooper who has a personal interest in the murder being solved.
—grantss