Book Three of the Nevernight Chronicle
An infamous assassin is on the run from her enemies in the City of Bridges and Bones. Pursued by Blades of the Red Church and soldiers of the Luminatii legion, Mia Corvere's own family wishes her dead. Her mentor is captured and her nemesis is close to total dominance over the Republic. But beneath the city lies a dark secret, and Mia must undertake a perilous journey with her companions to discover the final answer to the riddle of her life. Truedark approaches, and Mia must fight to survive in a world where even daylight must die.