The Ghost of Matera Arc or The Aria of the Land and the Clear Skies is the second story arc of the D.Gray-man series, which is written and illustrated by Katsura Hoshino. It focuses on Allen's mission, accompanied by Kanda, in retrieving a piece of innocence from Matera,Southern Italy. During the mission they meet a living doll, who turns out to be the Ghost of Mater, as well as a man living with the doll. They also face off against a level two Akuma, barely beating it. They eventually gain the piece of innocence, which was revealed to be inside the Ghost of Mater, and return home safely. It spans from chapter 8 until chapter 16 and from episode 3 until episode 5.