|"The Flood: Part Four"|
|First Published:||September 2010|
|Previous Issue:||Batgirl #11|
|Next Issue:||Batgirl #13|
"The Flood: Part Four"Edit
Stephanie Brown must risk her life to break into the Calculator's secret lair in an attempt to save Oracle and all of Gotham City from his techno-plague. And finally, the Calculator's daughter accepts her true destiny!