Harry had spent the afternoon on the roof, but the sun broke through the clouds and the brightness was causing a fresh migraine to begin. He rubbed the back of his neck with a wince, turning to head for the stairs to find the sanctuary of his dark room within the barricaded school. He paused, however, when he heard a sudden rattling of the school gate. Ignoring the growing ache in the base of his skull, he peeked over the ledge and gasped as he saw someone trying to get in, undead following.