Chen Si glanced at Zhou Dingxuan and the three of them, knowing what they were thinking in his heart, he smiled faintly and said: "Actually, the hidden city is similar to the call story of "Ali Baba and the Forty Thieves", and it needs a sesame to open the door, and this spell, I think some of you know it." As soon as the words fell, Chen Si's eyes looked towards Zhou Dingxuan.

Zhou Dingxuan frowned and said, "I, I don't know." He looked at Chen Si very puzzled, and always felt inexplicable in his heart.

Chen Si shook his head and said straightly: "You know, someone must have given you a hint, that sentence, only a few people can use it, I know, but it is useless to say it from my mouth." Think about it. ”

Zhou Dingxuan suddenly remembered a sentence, and he hurriedly said: "When I left Bureau W, Bureau Xie said a sentence, he said: 'Remember, when we get to the altar, we can use the power of the tide to ......set sail when the wind is down'" Gu Fengchun heard this sentence, his heart was cold, this sentence, he had heard it several times along the way. Why did Zhou Dingxuan also hear this, could it be that what he heard was what Zhou Dingxuan said? When Gu Fengchun was puzzled, Chen Si suddenly turned his head to him and said, "Gu Fengchun, you are not unfamiliar with this sentence, right?" ”

Gu Fengchun took a deep breath, nodded, and said, "I've heard it several times along the way, and at the beginning I thought it was an auditory hallucination, could it be that Uncle Zhou said it?" ”

"I didn't tell you that." Zhou Dingxuan explained: "It is said that this cannot be said casually, otherwise something big will happen." He listened to what Gu Fengchun told him once, and he was very shocked at that time, and he had great doubts about Gu Fengchun in his heart.

"That's right, Gu Fengchun, you repeat this sentence again." Chen Si's eyes were full of longing, and he looked at him with a smile.

"Why?" Gu Fengchun frowned and asked puzzledly.

"I said, come in here, ask less why." Chen Si shook his head.

"We can use the power of the tides to set sail when the wind is favorable......" Gu Fengchun repeated the words that suddenly popped into his mind in confusion. What does this mean? Could it be that a single inexplicable word could open this thick wall of ice? Gu Fengchun was very puzzled in his heart.

After finishing speaking, Gu Fengchun looked around, there was silence all around, nothing happened. Ye Ya also looked around, and then said, "Then, what about after reading the sentence 'Open Sesame'?" Ye Ya felt that Chen Si's statement was absurd at the beginning, but Chen Si could always do things beyond his expectations, so there was still a little expectation in his heart.

Chen Si smiled indifferently and said lightly: "There is still a little thing left to complete the procedure of this spell, fortunately, everything can be put together, this is something that has been difficult to appear uniformly for thousands of years, and it has all appeared here, it cannot but be said that it is the will of heaven." ”

"What's that?" Zhou Dingxuan and the three of them all felt that Chen Si's words were very strange.

"Blood. A little blood is needed. Chen Si said solemnly: "The blood that has made a contract, this is the only door to open the Hidden City, and it is also the most difficult procedure in the entire system to crack, because this kind of blood often appears again after several generations, and it will take many years of evolution to gather the required bloodline." Chen Si's words made the three of them fall into a situation where they didn't know where to go.

Chen Si saw the three of them in a daze, and said, "Ye Ya, give me a drop of your blood, and Gu Fengchun." After Chen Si finished speaking, he stretched out his index finger and put it to his lips, gently snorted, and squeezed out a drop of bright blood. Ye Ya and Gu Fengchun both felt that Chen Si's move was extremely strange, but they couldn't refuse his request, and they both squeezed out a little blood just like Chen Si. Chen Si stretched out his hand to his neck and pulled off a small jade pendant from his neck. Gu Fengchun looked at the piece of jade, and said strangely in his heart: "Hey, why isn't that piece?" When he first saw Chen Si in Bureau W and Ye Ya, he noticed that Chen Si was wearing a piece of jade, which was a modern handicraft that was not very valuable, and Gu Fengchun could see at a glance that the value was not high. However, this small piece of jade in front of me is extremely precious, white and flawless, and it looks very simple and familiar, as if it has been seen somewhere.

By the way, it's the one Liu Wensheng mentioned! Gu Fengchun clearly remembered that Liu Wensheng had mentioned to him that Xiao Zhonghua, the leader of their expedition to the rainforest, had such a piece of jade on him, the one that Ye Pingbo called "Kunlun Divine Jade". That's right! Gu Fengchun was shocked in his heart, and he was even more sure that Chen Si in front of him was the Chen culture of the year, even if it was not, it was definitely inseparable from Chen culture: the same superb medical skills, the same appearance, the same jade, so many coincidences are definitely not accidental! And Gu Fengchun further discovered that the material of this piece of jade was almost the same as that of the piece of Shuangkui Dragon Jade that Luo Sihai gave him! Is there any connection between the two? Gu Fengchun couldn't help but think about it.

"Feng Chun, Feng Chun!" Ye Ya saw his dejected appearance, and hurriedly called him: "What are you thinking?" Ye Ya had already squeezed the blood onto the jade. Gu Fengchun glanced at Chen Si and asked, "What should I do?" ”

"Drip blood here." After Chen Si finished speaking briefly, he stretched out the piece of jade in his palm, "Don't touch it." Chen Si nervously reminded Gu Fengchun, who clearly saw that Gu Fengchun had an urge to touch this piece of jade. Gu Fengchun frowned, and nodded helplessly, he really wanted to touch that piece of jade to determine if this piece of jade was the same as his piece of double dragon jade.

"What about me?" Zhou Dingxuan stood aside, he felt as if he was being ignored.

Chen Si grinned at him and said, "Professor Zhou, you don't need this. ”

Zhou Dingxuan "uh" for a moment, feeling very unhappy in his heart, why, in this era, even blood has been discriminated against? Is it because I'm a little older than them? Just when Zhou Dingxuan was unhappy, Chen Si also collected Gu Fengchun's blood. The blood seemed to have been secreted into the jade, and a trace of blood appeared on the jade, which looked particularly weird.

Chen Si approached the ice wall, walked a few steps, seemed to be measuring something, and then he stopped in one place, patted the ice wall with his hand and muttered, "It's time to be here," he turned back to Gu Fengchun and said, "Gu Fengchun, repeat what you just said!" ”

Gu Fengchun nodded, cleared his throat and said, "We can use the power of the tide to set sail when it's time for the tailwind......"