Blind

The Master of the Blind Tower is dead, and Shira Calpurnia must hunt down the murderer and bring them to justice. Dealing with the hostile astropaths and unravelling a conspiracy, Calpurnia is forced to confront her own prejudices and weakness if she is to solve the crime and restore order.
Read it because
It's another labyrinthine mystery for Shira Calpurnia. Matthew Farrer once again creates a believable and breathing world filled with fascinating characters and a central tale that's sure to surprise you.