"Super Protego, impregnable as a fortress, repel the enemy."
Professor Flitwick, Professor Slughorn, and Molly Weasley, each protected by six students, continuously chanted ancient spells. Silver light rose into the sky like droplets of water, and a massive transparent silver shield gradually took shape. Like a curtain, it slowly descended, enveloping all of Hogwarts.
Under Professor McGonagall's guidance, Hogwarts students and Hogsmeade residents alike entered the castle to find shelter.
Within Hogwarts Castle, the ancient statues stood like an army, weapons in hand, lined up in perfect order at every entrance to Hogwarts.
As the silver curtain fell completely, the curtain of war was about to rise.
"Feeling all right, Fred?" Standing atop the tower, George looked at Fred teasingly.
"If this eggshell can protect us, then of course I'm fine." Silver light reflected in Fred's pupils.
"The prank begins."
On the distant hill, a dense mass of black-clad figures surged forward like soldier ants. They formed a black tide, glaring greedily at Hogwarts Castle beneath its protection.
At that moment, the black tide slowly parted, and a bald man stepped out from the crowd.
Voldemort stood at the very front of the crowd, the position he enjoyed most. Bella followed behind him like a snarling mad dog, intimidating those behind her into lowering their heads.
Voldemort looked contemptuously at the protective magic cast by the professors. Yet when he saw that familiar castle, a trace of regret did indeed flash through his eyes.
"They never learn their lesson. What a pity." His snake-like mouth flicked out its tongue, and there was not a trace of emotion in his crimson eyes.
"Begin."
The Dark Lord's command rang in every Death Eater's ears. The Death Eaters behind him raised their Wands, and in an instant, magic soared into the sky like