From Molly Knox Ostertag, writer-illustrator of the New York Times and Aba Indie bestselling "The Witch Boy" trilogy and "The Girl from the Sea," comes a darkly beautiful story of identity, family, love, loss, and magic. Everyone harbors secrets. Mags's secret is particularly sinister it has teeth. Magdalena Herrera is on the brink of graduating high school but already feels burdened with adult responsibilities: caring for her ailing grandmother, working a part-time job, and engaging in clandestine makeouts with a girl who has a boyfriend. Yet, there's another secret lurking within her, pulling her into the basement each night, draining her of energy, and leaving her bleeding. It's a secret that could inflict harm and even prove fatal if exposed, as it did once before. So Mags maintains a low profile, isolated in her small desert community, until her childhood friend Nessa returns, evoking vivid memories of the past, offering an intoxicating glimpse of the future, and harboring a secret of her own. Mags resolves not to become attached, believing she's strong enough to survive on her own. However, as darkness encroaches upon them both, Mags must confront her secret, bringing it into the light, and make a choice between risking everything or having nothing left to lose.