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!