SOME BONDS ARE WRITTEN IN BLOOD. OTHERS ARE BURIED IN ROOTS.

As the hidden world fractures and old powers tighten their grip, Blood Archivist Reagan Vale must confront the living force beneath Mercy Row once and for all. The Root is waking, ancient alliances are unraveling, and the truth about what was bound long ago is finally clawing its way to the surface.

With vampire Nikolai Veyne at her side—and with Callum Thorne and Grania Ashbriar drawn deeper into the fight—Reagan must face the cost of legacy, love, and the dangerous histories that refuse to stay buried.

To save the people she loves, Reagan will have to decide whether the Root must be controlled... or set free.