Batwoman: Elegy — Greg Rucka

In these tales from DETECTIVE COMICS #854-860, now back in print, Batwoman battles a madwoman known only as Alice, inspired by Alice in Wonderland, who sees her life as a fairy tale and everyone around her as expendable extras! Batwoman must stop Alice from unleashing a toxic death cloud over all of Gotham City-but Alice has more up her sleeve than just poison, and Batwoman's life will never be the same again.