Two rival witches. One crumbling lighthouse. And a magic that refuses to follow the rules. Rowan of Millford works with soil and instinct. She talks to stone, coaxes rust to let go, and believes magic is a conversation. Theodora Ashworth works with geometry and precision. She deals in diagrams, calculations, and the belief that magic is a structure to be built. They have absolutely nothing in common-except the assignment that neither of them can afford to fail: Modernize the Shoalwater Lamp before the winter storms hit. The Catch: The lighthouse has been run for forty years by a keeper who ignores both their traditions. The magic in the walls is wild, the electrical equipment is still in crates, and the only thing Rowan and Theodora agree on is that they can't stand each other. Stuck on a rock in the middle of a churning river, they must find a way to weave their opposing magics together to keep the light burning. Because if the light fails, ships die. And if they kill each other first, the paperwork will be terrible. Welcome to Bridgemere, where the tea is hot, the magic is handmade, and friendship is the strongest enchantment of all.