As Sunrise falls and the Sovereigns begin to wane, Maren, Scion of the Sunrise Temple, awakens from her Long Sleep to find the Capital forever changed. Struggling to adjust to a new role in a Temple filled with uncertainty, Maren must navigate the delicate balance between tradition and progress while Callisto, her Sovereign, moves between two worlds on their behalf.

When Maren meets Hollie, a physician from the Capital, her life takes an unexpected turn, drawing her deeper into a web of secrets and shifting allegiances. Meanwhile, Nash, newly awakened as a Night Scion, is haunted by restless spirits bearing grim truths. With Keir, his Sovereign, Nash begins to make dangerous interventions in the Capital's fragile political landscape—actions the Night have long warned against.

As corruption spreads through the Administration, both the Sunrise and Night must face the question: Will their efforts be enough to stop the tide of decay, or has entropy already sunk its roots too deeply into the heart of the Capital?