In the aftermath of “City of Bane,” the Dark Knight has found himself cold, alone, and missing one of the very foundations of his life as both Bruce Wayne and the Batman. But personal problems will have to wait-a mysterious series of deaths have been peppered throughout Gotham and it seems an element of the supernatural is at play in the form of a monstrous pagan spirit. Can Batman silence the demons within to stop the killing? Or will this silent night be for keeps?