What if the ghost in your head is more frightening than the one right in front of you? Fifteen-year-old Libby has spent her whole life in the shadow of her superstar sister. Then her sister dies, and the light goes out. When Libby's parents drop her off in Sayers Beach, Maine, to stay at her aunt and uncle's inn for the summer, she sees a chance to escape her secrets and reinvent herself. Libby's finally caught the attention of the cute, popular guy, no one sees her as the lonely bookworm, and nobody knows why she blames herself for her sister's death. Nobody except the ghost in the lighthouse. And the ghost has a few secrets of her own. Lumens is an unexpected story of mystery, of love, and of finding your own way through the darkness.