Peter Pettigrew, Who Had Lost His Soul

A very simple analogy was to think of a wizard as a pile of building blocks. If those blocks were built into the shape of an animal, that was an Animagus;

Because of the Soul Stone's special nature, it could be regarded as a special building block;

What Vizet had done just now was pull out that special building block, the Soul Stone, destroying the original stability;

In this way, the Animagus form could no longer be maintained, forcing Peter Pettigrew to return to human form;

Of course, this was a method only Vizet could use. It required casting the Summoning Charm with Ancient Magic Power before the Soul Stone inside Peter Pettigrew could be stripped out from a distance.

Whether Cornelius Fudge understood it or not was not actually important. What mattered was that, roughly ten minutes later, Williamson and Prout did indeed return.

Not only had they come back, they had also brought Peter Pettigrew back with them;

It was just that Peter Pettigrew's state was very strange. When the two Aurors guided him toward the corner of the wall, he obeyed like a marionette;

Vizet frowned slightly. Peter Pettigrew's eyes were hollow and lifeless... there was not the slightest glimmer in them, making him look utterly dull and wooden.

"Where is Savage?" Cornelius Fudge asked first. "Why didn't he come back with you?"

Williamson and Prout's expressions turned odd. They looked at each other, and Williamson was the first to explain, "He needs to guide the Dementors and have them return to Azkaban."

When Vizet heard the word "Dementors," the special circumstances on the Marauder's Map from earlier became explainable;

Why Voldemort's name had appeared, then quickly vanished from the edge of the Marauder's Map...

Why Peter Pettigrew's name had flickered in and out, then finally