How Not to Summon a Demon Lord (Manga) Vol. 11

X MARKS THE ROT In Zircon Tower, Diablo and his companions have hit rock bottom. Batutta–the Paladin captain behind the frontier city’s deadly outbreak of Marked Death Disease–has captured Rem and Lumachina, and plans to use them for his nefarious scheme. But when Diablo ventures underground to save them, Batutta deals a debilitating blow to his left arm. Severely wounded, and unable to use his most powerful magic, has Diablo finally met his match?