BATGIRL ANNUAL (2017)

"Sibling rivalry takes on a whole new meaning in this one-shot story that tracks Batgirl's hunt for a serial killer whose M.O. strikes a familiar chord. Namely, a disturbing similarity to her brother, current convict James Gordon Jr. Family bonds are restored during a visit to his maximum- security surroundings, but Babs' doubts linger. Is James Jr. helping to solve this case or pulling her strings in a diabolical power play?"

"Batgirl and Supergirl must team up to break into Arkham Asylum! In this all-new Rebirth annual Batgirl must seek Supergirl's help to solve a mystery that leads them to the heart of the most insane insane asylum there is! But what they discover - and who they discover - in Arkham will lead to a much, much bigger story!"