Batgirl #13

Cass Cain on the path of vengeance! After a long, snowy march through the Himalayas, Batgirl and her team reach a hidden refuge deep in the mountains.

But there's no time to drop her guard: the threat of the Unburied returns hungry for blood, while Nyssa al Ghul tries to win Batgirl over to her cause.

Dark secrets threaten to pull Batgirl into a war she never wanted, forcing her to face ghosts from past and present. Has Nyssa really turned over a new leaf? And will Cass ally with old enemies to deliver justice for the murder of Lady Shiva?