Elena Álvarez has the steadiest hands in the hospital. It is the rest of her life she cannot hold together.

At thirty, Elena is already one of the most gifted neurosurgeons in her field-brilliant under pressure, respected by her colleagues, and trusted with lives that cannot afford a single mistake. No one sees the decade-long addiction beneath the white coat. No one knows how carefully she measures each day between competence and collapse.

Outside the operating room, Elena is trapped in a relationship that keeps taking pieces of her and surrounded by people who love her but cannot save her from herself. She has built a life that looks successful from the outside, even as it quietly disintegrates beneath her.

Then someone she loves ends up on her operating table.

With her career, her sobriety, and a child's life hanging in the balance, Elena is forced to confront everything she has spent years outrunning. The lies. The losses. The people she has hurt. And the terrifying possibility that surviving may require more from her than brilliance ever did.

Entropy is a raw, unflinching medical drama about addiction, codependency, grief, and the fragile family we build when the one we were given cannot carry us. It is not a story of easy redemption. It is a story about what addiction actually costs-and the difficult, unglamorous work of staying alive.

Book One of The Horizon Series.