D.Gray-man 3-in-1 Edition 4 collects volumes 10-12 and features story and art by Katsura Hoshino.

Amidst the fighting in Japan, the Millennium Earl goes after Lenalee until Allen makes a timely appearance. But their reunion is cut short when the earl traps the exorcists inside Noah's Ark. Now Allen and his friends have just three hours to find a way out before they are lost forever!

D.Gray-man 3-in-1 Edition 5 collects volumes 13-15 and features story and art by Katsura Hoshino.

Allen and the other exorcists must fight for their lives on the ark created by the Millennium Earl. But even as the ark around them is disintegrating, the earl hatches a new plan, and this one requires him to retrieve the Egg from the Black Order. Can the exorcists survive his next attack?!

D.Gray-man 3-in-1 Edition 6 collects volumes 16-18 and features story and art by Katsura Hoshino.

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?!