Winter Resurgence. The Beartooth Chronicles, #4

In the shadow of a crumbling world, Ash and Caleb have helped build something rare: a community that thrives against the odds. High in the rugged Beartooth Mountains, they've forged a life with those they hold dear, far from the chaos of a society on the brink of collapse. But survival has never been simple. A volcanic eruption rains ash down on the community, the government's desperate geoengineering plan threatens untold consequences, and the wilderness teems with predators both animal and human.
To make matters worse, their nearest neighbors are an extremist faction whose ideology is as dangerous as their weapons. Ash and Caleb must make difficult choices and take desperate measures to protect their community and each other. As tensions rise and threats converge, they'll discover just how far they're willing to go-and how much they're willing to sacrifice-to ensure their fragile community endures.
Taut with suspense and driven by unbreakable bonds, Winter Resurgence, is a powerful story of survival, love, and the fight to create a future worth living for.