Tumanbay: Once the most magnificent city on earth — now the dark heart of an empire which lies in ruins.

Occupied by the fanatical forces of the mysterious cult of Maya, corpses hang from the gallows, and citizens are flogged for next to nothing.

Barakat, leader of the Inquisition, leads the purge. Gregor, former spymaster to the Sultan, lives in fear. Madu, heir to the throne, is opiated and installed as a puppet ruler. And Qulan, the great general, rots in prison.

But the history of Tumanbay shows that those who can rise to power can just as easily fall. And there are whispers of rebellion, of a reckoning — as well as rumblings of plague on the horizon...