Drawing on the power of the Squib Army, the Killing Curse he cast this time shone so intensely that it was almost black.
A dark green beam burst from the tip of his wand and slammed viciously into the magical energy field.
At the instant of impact, the world seemed to fall utterly silent. Yet perhaps the collision had been so deafening that it only made the world seem as though it had suddenly gone quiet.
When the Killing Curse struck the magical energy field, the field had no time to react. Not even a ripple spread across it.
The Killing Curse pierced straight through the magical energy field. Countless fine cracks spread outward in every direction from the hole.
At that moment, the magical energy field's only response was like the final flicker of a dying man: before shattering completely, it suddenly flared bright for an instant, as though making one last struggle.
The new wand in Voldemort's hand also crumbled into powder along its length the moment the entire magical energy field shattered, the dust sifting down.
Once the magical energy field collapsed, the Dementors were the most eager to act.
They did not even wait for Voldemort's command before gathering together impatiently. Like a roiling black cloud, they drifted toward Hogwarts Castle.
Voldemort relaxed his fingers and let the powder slip through them.
Watching the Dementors depart, a satisfied sneer curled across his lips.
He raised his yew wand again, pointed it at Hogwarts Castle in the distance, and shouted, "Morsmordre!"
Ghostly green light shot into the sky from the wand's tip. A sinister Dark Mark exploded high overhead, hanging above Hogwarts Castle.
The Dark Mark then vanished abruptly, as though wiped away by some spell. The green light dispersed without a trace, and the night sky