She was buried alive to keep her safe. Now, she's breaking out to save the universe.

In the dying heart of the asteroid Cerenus, the laws of physics are failing. "The Fading"—a localized vacuum decay—is eating reality alive, turning steel to rust and color to gray.

Nineteen-year-old Pella knows the math of the end. Locked in a Faraday-shielded bunker by her sister, she spends her days calculating the rate of the universe's collapse. She isn't sick, as she’s been told. She is an Anchor—a rare human anomaly capable of stabilizing quantum fields with her mind.

Baylen is a scavenger, a survivor, and a warden. Driven by the trauma of seeing her parents murdered for their genetic gifts, she has spent fourteen years hiding Pella from the Syndicate, a ruthless regime that harvests Anchors to keep their own cities bright while the rest of the world rots. Baylen believes she is protecting her sister. Pella believes she is in a cage.

When a desperate Bridge Runner crashes into their lives, the lie shatters. Pella escapes into the chaotic slipstream of the "Echo Worlds," hunting for the source of the decay. Baylen hunts Pella, terrified that the universe will consume the only person she has left.

From the crushing depths of ocean worlds to the neon-soaked ruins of industrial moons, the sisters are on a collision course. Caught between a smuggler seeking redemption, a warlord seeking power, and a Councilor willing to burn a thousand worlds to save his own daughter, Pella and Baylen must decide what matters more: safety, or the truth.

In a universe where entropy is winning, love is the only constant.