"Oh, Sirius, are you back?"

When lupin saw Sirius returning safely, the two good friends for many years immediately came forward and hugged each other, patting each other on the shoulder and back, indicating the joy of meeting alive again.

But after showing the joy of meeting each other at first, Lupin couldn't help nagging Sirius.

"Look at you, you're always so reckless - I've been used to it for a long time, so I don't bother to care about you even if I know you're going to die. But do you know how worried you are about Harry and Hermione? They're smart, and it's not easy for us to hide it for you. If you come back later, I think they'll have gone to London to find you!"

"Just your wordiness," Sirius said, but just waved his hand casually. "Although the time was a little tight, didn't I catch up? I caught them just before they ran into the entrance and exit channel."

"At the entrance?" lupin said loudly, "isn't it dangerous enough?"

"Well, well, what's a big man talking about," said Sirius, patting Lupin's arm and curling his mouth. "I don't know how Tonks likes you... Oh, yes! Calculate the generation, Tonks is my cousin niece! After you get married, remember to call me cousin with her!"

Hearing Sirius's sudden words, he was a generation shorter, and lupin almost gushed out his old blood.

"You don't hate your last name at this time?" he, who has always been famous for his calmness, couldn't help sarcasm. "Don't forget, you've been expelled from the black house!"

Looking at this pair of merciless older generation living treasures who hurt each other and uncover scars, Maka can only smile and shake her head alone - Fred and George are better than them.

"OK, you can save the question of seniority and family background for later discussion! Two uncles, can we talk about business first?"

Maka's tone of joking did not bring much influence to the two old living treasures with thick skin like the city wall. However, after alleviating the previous mutual concerns and pressure through a mutual connection, the atmosphere at the scene obviously became a lot easier.

Just then, Maka thought and said:

"First of all, let's put the most important thing for everyone in the town at the forefront - well, Sirius observed a quite critical situation when he went deep into London to rescue the survivors."

It can be seen that his expression soon became serious.

"Just now Sirius told me," Marca said, "the reason why there were fewer living bodies moving on the edge of the fog is exactly the same as what you guessed - they are moving purposefully to a certain location in the city center and gathering together."

After a little meal, Marca frowned slightly.

"But what he observed was more than that," he nodded to Sirius and continued to lupin. "During the evacuation, he noticed that the corpses had taken a new trend - they were moving slowly towards the fog border in the southeastern suburbs of London."

Speaking of this, Maka let go and added:

"Incidentally, I also learned the same situation through the information returned by the patron saint... That is, Sirius's observation and speculation are accurate."

"So... Is your patron saint still collecting intelligence in London?"

Lupin listened and couldn't help asking, but she saw that Maka soon shook her head.

"Before Sirius left London, the connection between the patron saint and me had been interrupted, and before it was completely interrupted, it was fighting halbo."

"Hiss -"

Lupin gently clenched his teeth and took a breath, which was like talking to himself:

"Does halber choose southeast London because he knows spiral town is in this direction? Or is it just a coincidence?"

Maka shrugged at his muttering.

"You'd better not take chances," he said, suddenly reaching out and pointing to the sand table in front of him. "Because in the end, the enemy is Haier Bo, so even if the spiral town is underground, we won't know which direction he will let his half dead men come in... Therefore, the aspect of defending the living corpse must be comprehensive."

"As for the defensive force," Maka drew a circle around the town. "I spent a night strengthening the magic shield I found before, and after that, I also let my elf friends guard in all directions of the town in batches."

"Plus Harry, Neville and Delphi, even if there are hundreds of the most ferocious fire dragons and more than ten giants attacking in groups, there will be no problem."

When it comes to this, Maka still maintains enough confidence. But then lupin and Sirius heard him remind them:

"However, if Haier Bo also appears nearby, whether he makes a big attack or just stays outside and does nothing, we should evacuate from the secret road immediately... And..."

Maka said, sighed slightly, and then said meaningfully:

"Evacuate as selectively as possible... Do you understand what I mean?"

"Really -" lupin hesitated, "is it so serious?"

"Really."

This time, it was not Marca who answered him, but Sirius, whose expression also became very serious.

"In fact, I even want the asylum seekers in the whole town to evacuate somewhere else now!" he frowned. "But, to be honest, I don't know where it's safe."

"That's it," Maka nodded. "As far as I know, Haier Bo should not be able to leave the fog, but he can't always be like that... And once he can leave London, not only the British magic world, I'm afraid the whole world will fall into an unprecedented disaster!"

"But in this case..." Sirius looked at Maka and said, "listen to the feeling that you just explained your defense strength, do you still have time to go somewhere?"

Seeing Sirius acutely pointed out the truth revealed in his words, Maka could only nod her head again.

Then, he suddenly raised his right hand, pointed to his head, and then said directly:

"As you know, there is a big guy in the sky who is about to fall down - towards Hogwarts castle. In fact, I always think that the way to deal with Haier Bo may still be hidden in the school... Because it was Salazar Slytherin who successfully sealed Haier Bo underground."