The Grave at Storm's End — Devin Madson

As vengeance threatens to destroy an empire, old loves and loyalties resurface in this brilliant finale to Devin Madson's epic fantasy trilogy.
When gods fight, empires fall.
The flames of vengeance engulf Kisia. Katashi Otako has joined with the Vices, determined to let nothing stop him from destroying Emperor Kin Ts'ai-even if it means Kisia has to fall.
As the empire faces its greatest threat, Kin and Hana Otako must marry in secret to secure the support they need. But the ceremony takes seven days and seven days can change the world.
The Vengeance TrilogyThe Blood of WhisperersThe Gods of ViceThe Grave at Storm's End
For more from Devin Madson, check out:
The Reborn EmpireWe Ride the Storm