D.Gray-man 3-in-1 Edition Vol. 6 Manga
(W/A/CA) Katsura Hoshino
Includes volumes 16, 17 and 18. A mysterious virus has affected the Black Order, turning most among its ranks into zombies! Allen and Lavi are attacked by Count Krory, and Komui, the creator of the virus, must quickly find a vaccine. Amid the chaos, Allen learns that someone else’s memory has been implanted in him?!