"I'm starting the countdown, Harry!"
"Three, two, one, go!"
The old wardrobe opened, and a figure flew out in an instant.
Black clouds followed close behind. Amid flashes of lightning and peals of thunder, a dark, spectral figure churned within them, as though some extraordinary being had descended into this world. An immense pressure spread over Hogwarts.
In that instant, the classroom's temperature dropped by more than ten degrees. Ron Weasley and the others screamed in fright at the dark thing that had suddenly appeared.
Sirius Black sprang to his feet in shock, wand in hand. A sphere of lightning element energy formed in his palm as he prepared for battle.
Frightened by the sight before him, Remus Lupin also drew his wand. He stared in horror at the enormous black cloud, which periodically unleashed lightning that destroyed everything around it.
Even knowing it was not real, excessive fright could still cause irreversible harm.
Katelyle, who was teaching Elemental Magic at the Elemental Magic Academy, sensed the oppressive energy emanating from the castle. His eyes narrowed, and he turned to leave. "Practice on your own. I'll be back shortly."
Harry watched the scene before him, his face pale and his eyes filled with shock.
This was something that had suddenly appeared in a dream, and only once. He had thought it was behind him, never expecting it to become the thing he feared most.
While everyone stood frightened and stunned, the figure began lunging toward Harry.
"Harry, use the spell!" Sirius Black shouted urgently when he saw Harry freeze.
"Riddikulus!" Harry snapped out of his daze and hurriedly waved his wand.
Magic surged forth and struck the approaching black cloud in an instant.
Roar!
Within the black cloud, a skeletal creature that somewhat resembled a Dementor swung a scythe, a