Heather has just given birth to twin daughters when a meteor shower destroys much of the world. So, on one hand, this is a post-apocalyptic survival story. How do you cope: with optimism (if we work together, we will survive) or pessimism (we are going to starve and die)? But there is a second key element in this book, that the nearby mountain has supernatural power, ground magic, and yes, that centaurs exist on the mountain. Fairy tales are interspersed with a stark realty. This is a compelling fable for our uncertain time.