Green had not thought much of it at first. When he noticed someone in the classroom, he wanted to go in and see who had arrived so quickly. But the moment he stepped one foot through the classroom's back door, his body stiffened.
Since the classroom had both a front and a back door, Green had returned from the direction of the back door. He could see someone inside, but only their back. Yet in that instant, he felt as though he had fallen into an ice cellar. As half his body entered the classroom, a bone-chilling cold swept over him, making him shudder as the freezing sensation pierced straight into his marrow.
"Something's wrong!" Green sensed the danger, but that bone-deep chill seemed to freeze his thoughts, leaving him groggy and making him want to fall asleep at once.
At the final moment, Green bit down hard on the tip of his tongue. The pain kept a sliver of clarity in his mind. At the same time, his mental sense stirred, and he hid inside the Graveyard. The drowsiness vanished immediately. He then released the invisible Six-Headed Snake Woman and used Visual Synchronization to observe the outside world.
The moment he saw what was happening, Green was stunned!
There was no one in the classroom at all. The desks and chairs had been crudely piled into the four corners, leaving an empty space in the middle. A circular Magic Circle had been drawn there. Its dark-red color and the bloody stench permeating the air showed that the sizable Magic Circle had been formed entirely from blood.
And right in the center of the classroom—the spot where Green had seen someone sitting—was a lump of dark-red flesh, writhing irregularly as it emitted ripples that shook the air and a faint,