The second book in the critically acclaimed Obsidian and Blood trilogy:

The year is Two House, and the Emperor of the Mexica has just died. The protections he afforded the Empire are crumbling, and the way lies wide open to the flesh-eating star-demons--and to the return of their creator, a malevolent goddess only held in check by the War God's power.

The council should convene to choose a new Emperor, but they are too busy plotting against each other. And then someone starts summoning star-demons within the palace, to kill councilmen...

Acatl, High Priest of the Dead, must find the culprit before everything is torn apart.