Fang And Fracture. Whiteout Sins, #23

The ones who stay are never the tame ones. Love is a territory, and the only creatures worth having are the ones with teeth. Senna Thorne is a fierce protector of her Bitterroot Mountain sanctuary, where she rehabilitates and houses a pack of massive, semi-wild wolf-dog hybrids. When a development corporation moves to seize her land, they send Hoyt Kincaid-a scarred, brooding, and dangerous military contractor-to dismantle her life.
His contract is simple: assess the pack as a public threat, euthanize the animals, and force Senna off her property. But before Hoyt can finish his lethal assessment, a deliberately triggered avalanche obliterates the sanctuary, burying the cabin and the enclosures under tons of snow and ice. Senna and Hoyt are forced into the freezing, subterranean darkness of a root cellar, trapped alongside five apex predators in a claustrophobic, life-or-death standoff.
With the outside world blocked off and the oxygen supply failing, the hunter and the hunted are locked in a deadly game of survival. As they work together to navigate treacherous, forgotten mine shafts to find a way out, the professional distance between them begins to fracture. Hoyt is a man who signed a contract to destroy her world; Senna is a woman who has spent her life holding the world at arm's length.
But in the dark, with no one watching and nothing left to lose, the line between predator and protector blurs into something primal and terrifying. They must decide if they can trust each other to survive the mountain-or if the man who came to kill her is the only one who can help her live.