Borealis (Borealis #2)

Alaska State Trooper Silaluk "Sil" Osha's investigation into a series of gruesome slayings draws her deeper into darkness, as a shipment of illegal liquor lies shattered on the snow-along with its mobster smugglers, victims of a deadly force beyond understanding. With no clear suspect at hand, the local underworld arms up for retaliation, but while Sil's case evidence holds no keys to the murderous mystery, there may be only one place Sil needs to look-into a mirror!