.Hack//Another Birth Novel 4

.hack//Another Birth novel 4 is written by Tatsuya Hamazaki.

The World is further corrupted as the game expands into our reality. With Aura and her bracelet, BlackRose (aka Akira) discovers the answers to some important questions. They help shed light on Corbenik, the virus at the source of all the trouble. Will Akira, along with the aid of her comrades in The World, be able to save her comatose brother in time?