Strike the Blood Episode 17 English Subbed Episode Title:Fiesta for the Observers II.Episode Description:Aya retires to the roof of Saikai Academy to conduct her operations. She severs relations with the Library and marks up the school with magical glyphs. Nurse Witch Yukina explains Mimori's diagnosis and treatment of Yuuma to Kojo and Sayaka. While discussing Natsuki, who they believe can save Yuuma, they notice Asagi with a small child on TV and phone her. The call is interrupted by convict Kirika Girika who has realised that the girl is the young Witch of the Void. With Mogwai's aid, the two escape to an entrance of the Keystone Gate where the Island Guard (アイランドガード) and Astarte return the convict to his cell. Convict Gigliola Ghirardi appears and takes mind control of the Island Guard detachment, subdues Astarte and menaces Asagi and Natsuki-chan. Vatler intervenes and brutally returns her to her cell. Kojo rides up on a stolen folding bike and negotiates handing Natsuki-chan over to Vatler, ostensibly for safekeeping aboard his cruise ship. Convict Meiga Itogami approaches Aya on the school roof where she further explains the situation. His own plans do not include hunting the witch.