Volume 18

Lonely Boy (ロンリーボーイ, Ronrii Booi) is the eighteenth volume of the D.Gray-Man manga series.

Summary
Allen, Kanda, Link and Noise Marie go to Paris when they learn that several of their comrades were arrested for robbing people under the name of Phantom Thief G. Upon understanding that G was possessing their friends, Allen's group decide to stop him. The police are informed that G plans to rob the Louvre and the Exorcists meet G there. Although they are unable to capture G, Marie is able to discover that G's real identity is that of a boy named Timothy Hearst, who has the power of the Innocence. When they try to recruit Timothy into the Black Order to become an Exorcist, the town is attacked by level four Akuma, who want Timothy's Innocence. While Allen, Marie and Kanda fight the Akuma, Link tries to protect Timothy but is knocked out by level two Akuma. Before the Akuma kill his friends, Timothy uses his Innocence to fight the Akuma. Link helps him, but the Akuma is later defeated by a member from the Crow organization.

172. Notice Letter From G
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 * Allen Walker
 * Noise Marie
 * Howard Link
 * Timothy Hearst (G)

173. A Thief? A Ghost? An Innocence?
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174. Possessed Inspector
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175. Child Thief
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176. Barrier Battle
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177. Lonely Boy
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178. I'm Sorry
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179. TIMOTHY INNOCENCE
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180. Tsukikami Level II
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181. Night Soaring
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