A usurper has claimed the throne. Invaders amass at the borders. And they have made their alliances with enemy gods...For centuries the kingdom of Iraden has been protected by a god known as the Raven. But in their hour of need, the Raven speaks nothing to its people. 
It is into this unrest that the warrior Eolo - aide to the true heir to the throne - arrives. In seeking to help his master reclaim his city, Eolo discovers that the Raven's Tower holds a secret. Its foundations conceal a dark history that has been waiting to reveal itself... and to set in motion a chain of events that could destroy Iraden forever.
Ann Leckie