"You may not know, and you can't imagine, how difficult life was for humanity before magic flourished, in the chaotic times before humanity grew up," Merlin recounts in a heavy tone, "and humans were like animals in captivity, and different 'gods' claimed sovereignty over them, and they could dispose of us as if we were garbage, objects. ”

"Of course, in my time, it was actually better, and the battle of human beings against the "gods" was never a day or two, which was at least nearly a thousand years, but although there had been progress before, it had never been completely successful, until the rise of black magic, the birth of the death curse, and the human wizards mastered the weapon enough to kill the "gods", and then the war went smoothly. ”

"In other words, the dark arts were originally used to resist the darkness!" Dumbledore sighed and said, "I've been exposed to a lot of things today, I was actually just here to have fun, but now it's a bit of fun."

"But when it comes to the black dragon, I seem to be a little familiar with it, the ancient black dragon, I always feel like I've seen it somewhere!" Dumbledore scratched his head in annoyance, as an elderly man, he had so many things in his head that he had to use the meditation basin often to help find these memories.

"You shouldn't have seen it, we were already very rare in ancient dragons at that time, not to mention a wise black dragon." Merlin laughed and said, "You probably saw it in a book. ”

"Are you talking about the Hebdili Black Dragon in the north of Scotland?" Severus looked at Dumbledore and said, "That's a bunch of ordinary black dragons, maybe some kind of relative or descendant of Nidhogg." ”

"No, although Nidhogg is a fire dragon, it has no relatives left, and he is very different from other dragons, the most typical feature is wings, he has one more pair of wings than other dragons, so he has always been regarded as an alien by the dragons, and later, there was a discord between him and the dragons, even to the point of immortality." Merlin laughed and explained, "And he's really, really big, much bigger than the Welsh Green Dragon." ”

Severus said to himself that it was a good thing that Hagrid didn't see the dragon, otherwise he wouldn't have been able to walk.

Severus could imagine Hagrid's reaction to seeing Nidhogg: "Oh, Merlin, this is so cute!" ”

And the real Merlin continued, "Actually, the reason is also very easy to explain, Nidhogg is the only intelligent dragon, and the other dragons only have some simple thoughts, so Nidhogg looks down on other dragons, and similarly, the other dragons also reject this anomaly, so they basically don't get along, let alone have any blood offspring." ”

"Moreover, we were able to win at that time, thanks to the help of the dragon, King Arthur himself has the blood of the red dragon, and the red dragon was the consistent king of the dragon in England and Wales at that time, so we didn't spend too much effort to get the support of a large number of dragons."

"You know, the Knights of the Round Table are all dragon knights, otherwise they wouldn't have solved the battle so smoothly."

"So in the end, we defeated Nidhogg at Snow Pier Mountain, and King Arthur personally decapitated his head!"

Severus: "Does it take that much effort for you to fight a dragon?" How strong is he? ”

It stands to reason that just a giant dragon, can he still turn the sky upside down? Do you think this is the Dragon King of the Four Seas?

"Of course he was very strong, anyway, I couldn't beat him at that time, and who said that he was alone, at that time, which strong man didn't have a group of younger brothers, and Nidhogg's younger brothers were the most, such as giants, trolls, and whatever. And he also takes on a human form, so even human wizards have taken refuge in him! Merlin looks like you really don't know anything, "So he's the strongest!" ”

"I thought," Dumbledore suddenly called out, "Don't disturb the sleeping dragon," Dumbledore said, "remember the Hogwarts motto?" Do not disturb the sleeping dragon, this is it. ”

Dumbledore said happily, "What the Big Four defeated back then was a black dragon, a black dragon that could transform into Animagus, and it appeared in Gryffindor's Codex!" ”

"Isn't that a legend? Dumbledore, it's uncertain if it's Gryffindor's legacy, and why did you think of it now? Severus said coldly, if you thought it was really Gryffindor's legacy, would you only think of it now? What a joke.

Anyway, you're a Gryffindor.

The phrase "Sleeping Dragons Do Not Disturb" every Hogwarts student knows that they have been told as early as when they first entered the school, but to be honest, after so many years, let alone sleeping dragons, Severus has never seen dragons around here.

So there are a lot of legends about the dragons of Hogwarts, all kinds of strange ones, what is super huge and can swallow the entire Hogwarts dragon in one bite, dragons that can use magic, etc., and Dumbledore is talking about a dragon that can transform into Animagus, which is regarded as a grotesque legend.

"Yes, it should be him," Dumbledore swore and pretended to be enlightened, "isn't it an animagus who can transform into an animal, this is something only Niedhoven does." ”

"Oh, is it? Can you tell me more about it? "Merlin is interested, and he is the only one who doesn't know anything about it.

Dumbledore gave a general account of the legends of the Big Four, as well as the origin of the "Sleeping Dragon, Do Not Disturb".

But this time, it's obviously much more normal.

"Well, it's still very possible, I can't think of any other creature that can provide that much energy other than Nidhogg, the god of death, for thousands of years to be able to use as the heart of the array and maintain such a huge barrier." Merlin smacked his mouth and said slowly, "Moreover, Nidhogg's vitality is very strong because of gnawing on the golden apple tree, coupled with its strong strength, it is possible to cut off the head and not die!" ”

That's why there is a saying "don't disturb the sleeping dragon"? In other words, is it possible to resurrect? Severus said coldly, "Is this really possible?" ”

"Of course there is, it is impossible to be resurrected, but if there is no real death, resurrection is not so difficult." And then Merlin suddenly asked Dumbledore, "Hey, are you holding the Gryffindor sword you said in your hand?" If so, then it's pretty much certain. ”

I forgot to mention that although they had been chatting for a while, Dumbledore had not yet introduced himself to Merlin, and as for Severus, he didn't really seem to have any communication between the two old men.

An old man is enough to torture people, another one? Or forget it, and if the two are superimposed? Severus said he just wanted to stay away!

"It was the sword that took off his head in the first place." "So it's possible to use this sword to defeat Nidhogg again." ”

"But it's not so easy for Nidhogg to resurrect him," Merlin said, "I took care of his head at the beginning, and I wasted a lot of effort to banish him to another dimension, which means that the Big Four you are talking about may have defeated his body, lost consciousness, and only had his instinctive body left!" ”