you 're right! Sirius was not looking for anyone else, it was Snape.

To tell the truth, when Snape suddenly reached out and poked his hiding track in the alley opposite the apartment building, he really didn't think about anything else.

At that time, after all, Professor McGonagall and Snape were the two people across the street, including the two Hogwarts girls who had just left. Even though he had always been unhappy with Snape, now he had to admit that the other party was also "his own".

Therefore, he didn't hide his existence too much at that time. It didn't seem too unexpected that Snape was keenly aware of his appearance.

Because of this, after being pointed out by Snape, he simply went out to meet them directly, and even took the initiative to ridicule Snape on this matter.

In fact, Sirius didn't pay much attention to Snape's sudden departure when talking to MEG not long ago. Because he also knew that on the basis of his dissatisfaction with the other party, the other party had always hated himself. It seemed that there were not many unnatural traces of the guy's early departure.

Of course, the most fundamental reason why Sirius didn't notice something wrong from the beginning is that Snape's brain closure has really been practiced to a deep level. It's too difficult to find any flaws in such a person.

However, when Colin fainted suddenly, Sirius followed MEG all the way to the temporary ward and saw the picture of Colin left in the magic film, he finally found something wrong indirectly!

Although the film picture of the suspect is blurred, he can almost confirm - he can recognize the scene in the picture!

Isn't that next door to the alley where Snape stabbed him? Go in from the next alley to the other end, which is the location of the film picture, and the opposite seems to be the temporary student dormitory where Colin fainted.

He was passing by when he came!

With this thought, the specific picture that Snape had skipped when he pointed out where he was initially, gradually became clear again in Sirius's mind. He gradually began to realize that although Snape really meant himself at that time, the other party's eyes seemed to have swept by inadvertently.

Yes, although the memory is still a little vague... After all, it was something that had been ignored at that time. Even if you noticed something strange afterwards, it is difficult to reproduce too many details in your mind one by one. This is the time when he was silent in the ward not long ago.

However, even if it could not be completely determined, Sirius's pragmatism and high action force did not prevent him from following such a few hindsight and starting to verify his guess with practical action.

After a "verification" after he left the temporary ward, he looked silently through his best tracking ability, and finally followed Snape's trail all the way to find this place.

He was sure that Snape must be in the old apartment nearby, because there had been a real reaction to the curse in the seemingly deserted old building!

Until then, Sirius, squatting under the windowsill and slowly putting down his wrist, had gradually raised the corners of his mouth.

"That guy... What are you talking about inside? And it seems that the origin of those sneaky guys may not be so simple."

Just thinking about it, Sirius, who was still considering what method to peep at without disturbing the people inside, suddenly raised his eyebrow and seemed to suddenly notice something.

"Huh?"

He suddenly found that the spell reaction on the other side of the wall began to weaken rapidly, and then disappeared completely. And then, accompanied by a very regular sound of footsteps.

"Squeak --"

It was mostly the sound of opening the door, and the sound of footsteps gradually disappeared, leaving the room only one wall away from him.

"... are you a little late?"

It was probably Snape's footsteps - a large step, as if in such a hurry at any time. Just listening to this sound, Sirius could quickly outline the image of the "big bat" with a light cloak in his mind.

"Well, I think I'm going to leave through the main door on the other side," he thought to himself, "but those sneakers haven't moved yet."

Most of the magic spell of silencing spell has been lifted, but there is still no sound in the room after the footsteps go away. Considering that these people, unless they are ghosts or Dementors and don't walk on their feet at all, it is estimated that it can only be one reason - those people still don't think how safe it is here, so they still maintain a high degree of vigilance after Snape left.

After narrowing his eyes a little, Sirius wisely chose not to frighten the snake immediately, but to keep quiet and retreat in the direction of communication.

Some of the previous conjectures have been verified. He can contact Professor McGonagall. So stay a little far away from here so that the intruders who are mostly hiding in it will not notice the movement.

But just as he quietly retreated to the alley and was about to go out, Sirius suddenly stopped.

"Do you think I'm right? Hum, it's really a dog nose... And it's not a nose that ordinary dogs can have. Deodorant doesn't work."

Listening to this sentence, Sirius narrowed his eyes again, lowered his voice and asked:

"Why, I've caught up with Professor McGonagall sneaking here to 'chat' with people behind his back. Don't you panic at all?"

As soon as the voice fell, a figure outside suddenly took a step from the side and stepped into Sirius's line of sight.

It was him! Severus Snape.

"I'm just going to deal with my personal affairs first... I've finished it, and then you can do whatever you want - if you want to poke it back to Professor McGonagall, it's up to you. As for now... Don't bother me! Unless you want to lead out those inside."

After whispering these words and pointing to the distance, Snape turned decisively and walked silently to the distance. Sirius probably didn't expect this guy to be so calm, but he was stunned, but he didn't deliberately chase him in the end.

"Private affairs? What?" he thought to himself, frowning.