"How long can they be like this?" Xue saw that Xiao Yuchen also had a bottle in his hand, so he took it and opened it to take a look, and there was still half a bottle of odorless white powder left in it.

"An hour or so. Feng Qian Yan said, stretching out his hand towards the snow, "Bring it." ”

Xue shook the porcelain bottle in his hand: "Such a good thing, this son has accepted it." After speaking, he flipped his hand and put away the porcelain vase.

Feng Qianyan blinked, withdrew his hand, and said two words with a smile: "Okay." ”

"Then thank you, Miss!" Xue said happily for some reason.

Xiao Yuchen glanced at Xue with great sympathy, and was silent in his heart: It's really self-inflicted, you can't live! Yan Yan's poison, you kid dare to use it without an antidote......

"How do we get in?" Feng Qianyan has seen that this treasure pavilion has no windows, only such a door.

Xiao Yuchen took out a piece of paper and handed it to Xue, drawing a key on it.

Xue took the drawing and shook it in front of Feng Qiyan: "Just have this! Xue crouched down, opened the metal box, put the drawings aside and began to look at what she was fiddling with in her hands.

Feng Qianyan was very curious and squatted down. It turned out that there were more than thirty small lattices in the metal box, and inside each lattice was a strangely shaped metal piece. I saw that Xue took seven or eight out of it one after another, and after a while, he assembled a key, and when he looked closely, it was exactly the same as the drawings drawn by Xiao Yuchen.

"It's done. Xue put away the drawings and the metal box and stood up with the key in hand.

Feng Qianyan poked Xiao Yuchen, and whispered close to his ear: "In addition to killing people, I am afraid that he has done a lot of work as a gentleman on the beam." ”

"Hmm. Xiao Yuchen's eyes welled up with a smile.

"Why did you have to bring him, I see!"

As she spoke, Xue inserted the key into the small hole in the door and looked at Xiao Yuchen.

"Turn right, half a circle. Xiao Yuchen gestured.

Snow turned the key in her hand half a circle to the right, and a strange pattern with five numbers appeared on the door again.

Feng Qianyan and Xiao Yuchen frowned together: the patterns and numbers had changed, completely different from the last time.

"What is this?" said Snow, holding her arms and looking at the pattern on the gate at a loss.

"Formation. Xiao Yuchen opened his mouth and said, "Yan Yan, you use your spiritual power to take a look." ”

"Oh. The wind poured out his spiritual power, and the seemingly messy pattern turned into a small formation in his mind. Feng Qianyan nodded, "It's indeed a formation, but what's the matter with this number?"

Xiao Yuchen shook his head: "I don't know." ”

Feng Qianyan thought about it for a while, at that time, Mo Fang ordered three, four, and seven, and now the numbers displayed on the door are two, four, five, eight, and nine, what is the connection between the two?

After thinking for a moment, Xiao Yuchen raised his hand and walked towards the number point. First click on a "four", then a "five", and finally move above the "eight". Just as his fingers were about to touch the door, Feng Qianyan reached out and grabbed Xiao Yuchen's sleeve.

Xiao Yuchen turned his head sideways and looked at the wind.

"Nine. Feng said with a calm face.

"Good. Xiao Yuchen didn't ask anything, moved his finger to the right, and clicked "nine".