Batwoman is a name used by several characters of DC Comics, both in mainstream continuity and Elseworlds. The best known Batwomen are Kathy Kane and Kate Kane. The first Batwoman, Kathy Kane, debuted during the Silver Age of Comics within the "pre-crisis" mainstream DC Universe. The 1996 limited series Kingdom Come by Mark Waid and Alex Ross presents a Batwoman portrayed as a Batman admirer from Jack Kirby's Fourth World. Her costume mixed Kirby-esque elements with those of the original costume. The character rode a giant bat-winged dog named Ace. Batman: Dark Knight Dynasty (1997) features Vice-President Brenna Wayne who becomes Batwoman to stop Vandal Savage. Wayne discovers a conspiracy against her family after investigating the last thirteen generations of the Wayne family. JLA: The Nail (1998) by Alan Davis features Selina Kyle adopting a Batwoman costume based on the costume worn by Kathy Kane. The 2004 sequel, JLA: Another Nail, features her fashioning her own Batwoman persona. Superman/Batman #24 (November 2005) presents a world where the genders of the characters are reversed with Helena Wayne as Batwoman. DC later placed this alternate reality as "Earth 11" in the post-Infinite Crisis multiverse. Kate Kane as Batwoman debuted in 2006 in the series 52. In the Teen Titans storyline "Titans Tomorrow" (2005), Bette Kane is Batwoman, and wears a costume similar to Kathy's pre-Crisis one. In the follow-up storyline, "Titans of Tomorrow... Today!" (2007), Bette Kane remains Flamebird and former Batgirl Cassandra Cain becomes Batwoman. In DC Comics Bombshells, which take place in an alternate history version of World War II, there are three versions of the character outside of Kate Kane: Katherine Webb, a member of the Kane family and the aunt to both Kate and Bette, is the Headmistress of Pinkney Orphanage. She was left in charge of the orphanage by Kate before she left Gotham. Headmistress Webb is a xenophobic woman, who uses the orphans to make robots to protect the country from foreigners, whom she characterizes as evil.