"The caretaker, Argus Filch?"
Voldemort remembered that when he had studied at Hogwarts, the caretaker had been named Apollyon Pringle.
But the most important point was that Apollyon Pringle had been a wizard. Though his magical ability had been quite limited, there was an essential difference between a wizard and a Squib.
Voldemort shifted his gaze to Barty Crouch Jr. beside him. "Barty, do you know Argus Filch?"
For once, Barty Crouch Jr. did not answer at once. As though he had been cursed, he stared fixedly at Magic Tuning: Elementary Charms in his hands.
Just as he turned to the next page, Voldemort's call grew impatient. "Barty?"
Barty Crouch Jr. finally snapped back to his senses and reflexively stood up. Magic Tuning: Elementary Charms slipped from his hands and hit the floor with a dull smack.
His face had gone faintly pale. He swiftly turned to Voldemort, his voice hurried and tinged with nervousness. "Master, did you call for me?"
Seeing that Barty Crouch Jr. had also become engrossed in those books, Voldemort was no longer quite so angry.
"Barty, do you know Argus Filch?" he asked again. "The Hogwarts caretaker. He is a Squib."
"Argus Filch?" Barty Crouch Jr. responded quickly. "Master, of course I know that Argus Filch!"
"That's right! He must be a Squib!" He recalled his own time at Hogwarts. "That was what all the students said back then!"
"His pet was trash too—a mongrel Kneazle... He even seemed to have named that mongrel something... what was it... Mrs Norris?"
"Who knows what Dumbledore was thinking? It seemed like he would let any rubbish into the school. He had no concept of selection at all."
As he said this, his eyes wandered, occasionally landing on Snape.
"That is hardly surprising..." Voldemort recalled Rubeus Hagrid, who