Batgirl Vol. 4: Strange Loop (Rebirth)
After the Maid of Mischief infects Barbara Gordon's company party with a killer virus, Batgirl must embark on a wild goose chase around the city to find a cure. Then, Batgirl begins an investigation into attacks targeting women in Burnside, but she's not the only one searching.
Collects issues #18-24 and stories from #25.