The anchor of the Spirit World pierced Slytherin, and Voldemort was pulled away because of the hexagram array—an array set up by Voldemort because he wanted to absorb Slytherin, which deeply bound the two of them together.
However, the students merely provided energy for this array and only had a magical connection to it.
As for the Chamber of Secrets itself, it was like the soil caught by the root system of the students' magical network, and it was dragged along with them.
Severing the magical connection could prevent the students from being pulled into the Spirit World, and it could also stop this Chamber of Secrets from sliding deeper into the Spirit World.
However, there were now the magical energies of hundreds of students in the array, and Slytherin seemed to have considered the possibility of uninvited guests when he designed it at the beginning. Therefore, apart from being used to establish and maintain the "passage" between this world and the Spirit World in order for him to resurrect, this portion of magic also possessed powerful protective capabilities.
The force with which Murphy had just tried to approach the locket and been pushed away came from here.
Dumbledore tried casting a few spells, but they all struggled to sever the magical bonds.
Seeing that the souls of the students were about to be pulled away from their bodies, Dumbledore suddenly grabbed a magical channel.
In an instant, his magic was also merged into the ritual. However, unlike the unconscious students, he could still control his magic. He spread his own magic out, and following the magical channel, it turned into a huge network, blocking the path in front of all the students like a massive dam, trying to hold back the force that was about to pull their