Let us turn back the clock to the moment when Malfoy tried to lead the Death Eaters in breaching Hogwarts from within, only to be knocked unconscious by an oncoming Stunning Spell.
Su Er left the Great Hall just before dawn.
That was also why he was not in the Great Hall.
There was something more important waiting for him to do.
And now, on this day, September first, the time had come.
The white marble tomb lay quietly on the little hillside behind Hogwarts School, the words deeply carved into its headstone facing the rising sun.
Su Er stood quietly in the deepest darkness before dawn, wand in hand, his bright eyes fixed on the east.
Waiting for the moment when that first ray of dawn pierced the darkness.
Time passed quietly. A burst of golden light suddenly shone at the edge of his vision. At the same time, a tiny, slender flame appeared above the white marble tomb and gradually grew, the phoenix song within it rising from faint to impassioned.
It seemed to be calling for someone dearly missed to return.
Su Er turned gently, putting his back to the Castle and facing the rising sun, and raised his wand.
A lengthy incantation spilled from his mouth, and a lustrous black stone slowly floated out. As his chanting grew louder, it reached a strange harmony with the phoenix song, and the air began to vibrate.
A speck of white light flashed at the center of the Resurrection Stone. Darkness made its final bid before the inevitable dawn arrived.
By the time it was all done, the morning sun had risen, and darkness had completely lost the ground on which it could survive. Watching the old man move his body, Su Er wiped the sweat from his forehead,