Strike the Blood, Vol. 11 (light novel)

A New Year on Itogami Island is right around the corner, and for Kojou and Yukina, that means cutting off their contacts and returning to the mainland for a top-secret rescue mission. Coincidentally, this also means zero contact between Yukina and the Lion King organization. Can the fearful duo see their mission through to the end, or will they be overwhelmed by an unexpected enemy?