"To kill swiftly is the blessing one gives to the unimportant." One week after returning from Nagoya, Alice is given a seemingly simple assignment, community service. The catch? It's at St. Agnes, a shelter for teenage girls with nowhere else to go. It also happens to be where Alice stayed in her youth. Someone has been experimenting on the girls there, and Alice, firm in her 'no kids' rule, is not about to let that stand. Allison and Aika are like oil and water, and they know it. The two semi-retired assassins have never gotten along, but now they will be forced to work together to help their mutual friend and employer if she is to survive the night. Can they set aside their differences in favor of keeping Alice, and a group of teenagers, safe? Black Days is the all-new, first post-Big in Japan story in the Gailsone universe. In it, we learn more about Alice's past and why she is who she is. This is Alice and the girls as you've never seen them before; brutal, vulnerable, and resolute. In the face of armed gangs, stone giants and techno-organic monsters, Alice Gailsone is about to live up to her title as the Most Dangerous Woman in the World. Black Days is a collection of short stories that look at Alice and Allison's time in the Purge. Join Allison as she goes on her first solo mission in Blood & Rust. Or maybe you'd like to do some moonlighting with Alice on a cargo freighter with a psychotic techno-shifter in A Night at the Opera. In Date Night, we see a more casual (but not less-stabby) side of Allison as she goes on her first real outing as a teenager. Blackbird's Song takes us through the origin of Victoria Green, foil to Alice and hero in her own right. Finally, The Impossible Door shows us why Alice is the best at what she does (except fighting dragons. That she's happy to leave to others.) Black Days is an anthology that collects Blood & Rust, A Night at the Opera, Date Night, Blackbird's Song, The Impossible Door, and the all-new story, Black Days. Each story is presented with commentary from the author, deleted sections, story trivia, and more.