"It's possible, but I think it should be a formation, otherwise, we wouldn't have been in it for so long. Lin Han nodded.

He also made marks on the road, but he didn't find any marks, so there are only two kinds of explanations, one is that this passage is really so long, and the other is like what Lin Han said, in this labyrinthine passage, there are formations, two possibilities, and the latter is even greater.

"Then in that case, can you break the formation?" Chen Mo hurriedly asked.

"Not at the moment, I need to observe this formation, let's take a walk now to see if we can go out or not. Lin Han immediately said.

This formation is really a bit unfathomable, and now Lin Han is also sure that there is indeed a formation in this place, so now, Lin Han also needs time to understand this formation.

"Quack!"

At this moment, the sound of screams came one after another, and Lin Han immediately turned his head, and immediately found that one by one, black birds that looked like crows and bats rushed towards Lin Han and the four of them.

"Do it!" Lin Han immediately sacrificed the Earth Dragon Sword, and then said.

Behind him, Chen Mo and the three of them also reacted quickly.

"Purple Star Slash!" Lin Han shouted, and the endless sword qi suddenly penetrated into the bodies of those strange birds like sharp knives, and now Lin Han's comprehension of this Purple Star Sword Technique is getting deeper and deeper, and a sword slash out almost exerts the power of the Purple Star Sword Technique to the extreme.

"Puff puff!"

Suddenly, there was a series of screams, and the strange birds were all killed by Lin Han and fell to the ground one after another, and behind Lin Han, Chen Mo and the three of them also quickly eliminated the remaining strange birds.

"We have to get out of this place as soon as possible, otherwise, although the strength of these strange birds is not strong, I am afraid that there are too many of them. Lin Han immediately said in a deep voice.

Chen Mo and the three of them also nodded, their faces were not good-looking, obviously they didn't expect that there was still a danger in this place.

Along the way, Lin Han was also attacked and killed by these strange birds, but they were all easily solved, and after an hour, a smile finally appeared on Lin Han's cheeks, because Lin Han finally successfully studied this formation thoroughly.

"Whoosh!"

But it was also at this time that Lin Han suddenly heard the sound of breaking the wind, and the sound came from not far from the passage.

"Prepare to attack!" Lin Han's face suddenly changed, and Lin Han already felt that this group of strange birds was not good.

Sure enough, these strange birds almost killed Lin Han and the four of them as soon as Lin Han's words fell, and immediately, Lin Han's face changed greatly, because the strength of these strange birds was too strong, and their attack was as if they were commanding, very rigorous.

"Ahh

Lin Han's eyes were looking at the strange bird that had been blue all the time, this strange bird did not attack Lin Han and the four of them, but in the back, I don't know what it seemed to be doing, and Lin Han then understood something.

This blue strange bird should be the existence that has always been like the king of strange birds.

"Solve it!" Lin Han's eyes suddenly flashed a cold light, if this continues, there will be more injured people, which is very unfavorable to Lin Han and the four of them, as the saying goes, the thief captures the king first, and what Lin Han is doing now is this truth.

Lin Han immediately stepped on the Nine Heavens Dragon Walk, and rushed towards the strange bird king.

"Three Lotus Xuanling Array!"

Lin Han immediately performed the technique of the Spirit Array, and the three huge lotus flowers that exuded a powerful aura rose up, and then, Lin Han also shook hard, and suddenly, the three lotus flowers roared at the Strange Bird King.

"Killing Sword Intent, Purple Star Slash!" Lin Han was already ready to kill with one blow at this moment, so as soon as he made a move, it was two major killing moves, and the sudden fierce power also frightened the blue Strange Bird King backwards.

"Run, how could you let you run away?" Seeing this, Lin Han's eyes flashed sharply, and suddenly, the two major killing moves in his hand were quickly covered against the strange bird king.

"Bang!"

The blood erupted directly, splashing Lin Han's body, and the strange bird's body was directly bombarded into a lump of minced flesh that could not be seen clearly by Lin Han's two major killing moves.

And at this moment, because this blue strange bird was killed, Lin Han suddenly found that the strange birds that killed Chen Mo and the three of them obviously became panicked, and Lin Han immediately rejoiced in his heart, sure enough, this blue strange bird was the key.

Lin Han immediately turned around, and the punch of the strange bird was a move to kill the strange birds, and suddenly, the violent power was also instantaneously drowned these strange birds, and the sound of 'poof, puff, puff' continued to sound, and one by one the strange birds were directly bombarded into roast chickens and frozen chickens by such extreme power.

Poof!poof!poof!!

Suddenly, a large number of strange birds also directly fell from mid-air, and they were also directly blasted into minced meat.

After a while, Lin Han also withdrew the Earth Dragon Sword, leaving only the body of a strange bird in one place, and the entire passage was filled with a strong smell of blood, which was piercing.

"Hurry up, let's change places, I've already found a way to break this formation, I'm afraid that such a strong smell of blood will also attract more strange birds." Lin Han immediately said to Chen Mo and the others.

After the words fell, Lin Han also hurriedly changed places, looked around, Lin Han also said to Chen Mo and the others: "I will arrange a defensive formation later, and then, I will refine four formation keys, you and I will protect the Fa with me, don't disturb me during the period, unless my life is in danger." ”

"Formation key?" Guo Zhang's brows furrowed, obviously not knowing what this formation key was.

"The formation key is equivalent to the key on the gate, which can not destroy the gate but also enter the gate, this formation, I can't break it, so I can only refine the formation key. Lin Han immediately explained.

There are very few people who know the formation key, even some formation mages don't know, and it's not a strange thing that Guo Zhang doesn't know.

"Okay, you prepare, we will protect the Dharma for you. Guo Zhang immediately nodded and said to Lin Han.

Immediately, Lin Han also casually arranged a defensive formation, and then Lin Han also began to refine the formation key, it takes a long time to refine the formation key, and there can be no disturbance during this period of time, so make all the preparations.

Two hours later, Lin Han also opened his eyes, and there were four keys like fireflies in the palm of his hand, and as soon as he opened his eyes, Lin Han saw that the defensive formation he was in was suddenly shocked.

Lin Han immediately turned his head to look, and then found that there were already a lot of strange birds gathered around the defensive formation where he was located, and Lin Han looked at the appearance of Chen Mo and the others, and it seemed that he was also resisting very hard.

"Crush the key. Lin Han immediately handed the formation key to Chen Mo and the others.

!!