Kekkaishi Graphic Novel Volume 27

"By Yellow Tanabe A powerful witch attacks the Karasumori Site and threatens the surrounding town of innocent people. Where can Yoshimori and Tokine find a sorcerer to counter her magic on such short notice? Then, Yoshimori's older brother Masamori is invited to revamp the Shadow Organization. Is this one of those offers you can't refuse...? Plus, the secret origin of the Shadow Organization finally revealed...not to mention the awful truth behind the mysterious attacks on the mystical sites!"