Strike the Blood, Vol. 8 (light novel)

When Kojou Akatsuki went tovisit his sister in the hospital in middle school, he met a vampire namedAvrora. Once he learned she was the key to saving Nagisa's life, he helpedAvrora escape. Now, the weapons dealer Zacharias is telling him to hand overAvrora in order to rouse the fourth primogenitor! As Zacharias's plans plungeItogami Island into peril, the fourth primogenitor finallyawakens...