Two ecological engineers must change their world to save it, no matter the cost to all they love. Fee comes from the mountains of her world. She grew up with trees, rushing streams and rain. The grasslands beyond the foothills are Caleb’s home. Dry, windblown, a place of endless light and untouchable horizons. Both are ecological engineers for the Survey, working to save their world from environmental disaster before it’s too late. Because unless something is done, soon, the planet is going to hit back. Storms, floods, drought. "Don’t bother taking your pick," says the planet, you’re going to get the lot."