Chen Yunuo really calculated all the numbers in it after some calculations, the number of spaces is only to assist in the calculation of the number of circles and X, so it doesn't matter, the circle is calculated to be 7134, X is 86371, although the numbers are calculated, but these numbers are not confusing at all, he scratched his head and lay on the table and shouted sullenly: "Dad, are you playing with me?" Another bunch of number riddles, let me guess? ”

Zhang Xinyan and Yu Linghan heard Chen Yunuo in the room suddenly shout, so they walked into the room to check what was wrong with him.

Zhang Xinyan saw Chen Yunuo lying on the table and refused to say a word, so she asked, "Nuo'er, what's wrong?" Okay? ”

Chen Yunuo handed the calculated envelope to Zhang Xinyan and said, "Grandma, my father is playing with me." ”

Zhang Xinyan picked up the envelope and looked at the two sets of numbers inside and asked, "This is the clue left by your father?" ”

"Hmm," Chen Yunuo looked at his grandmother aggrievedly and nodded.

Zhang Xinyan and Yu Linghan looked at these two sets of non-conformable numbers and studied them together.

"7~1~3~4~, Han'er, do you know what it means?" Grandma asked.

Yu Linghan leaned over and looked at it seriously for a while, and then shook his head.

“7～1～3～4～，7～1～3～4。” Zhang Xinyan has been chattering there.

Listening to what his grandmother had been chanting, Chen Yunuo's head suddenly flashed, and he blurted out: "7134, go to the basement." He excitedly grabbed his grandmother's hand and asked, "Grandma, go to the basement, do you know where there is a basement?" ”

"7134, I went to the basement." Zhang Xinyan suddenly realized.

"yes, there's there?" Chen Yunuo couldn't wait to know if he guessed wrong.

"Yes, right under our house." Zhang Xinyan pointed to the ground and said.

"Under our house?" Chen Yunuo was surprised and couldn't believe what he had heard, he pointed to the ground and went to confirm with his grandmother again.

"yes, right down here." Zhang Xinyan nodded and said.

"No, grandma, you're joking, aren't you?" He grew up here since he was a child, and he didn't even know that there was a basement at home. Zhang Chenyu really didn't want to believe what his grandmother said, if these words were true, then his family was hiding too deeply. For more than ten years, there is not even a trace, is he too stupid? But when you think about what has happened in just a few days, a mere basement is nothing...... He patted his face hard to wake himself up, it hurt a lot, it seemed that he was really not dreaming.

"Oh, silly boy, why are you beating yourself?" Zhang Xinyan saw that her grandson kept slapping herself in the face, and she went up to check Yu Nuo's slightly red cheeks in distress and said.

Chen Yunuo smiled bitterly and said, "Grandma, I'm fine, can you tell me where the entrance to the basement is?" ”

"The basement entrance is just behind the bookcase in your dad's room." Zhang Xinyan pointed to Yinan's room and said.

They walked into Chen Yinan's room, Zhang Xinyan twisted the lamp on the desk, and with a click, one of the bookcases moved forward and then to the left, and Chen Yunuo walked into the place that was originally blocked by the bookcase, where there was a staircase going down.

"Grandma, you wait for me at home, I'll go down and take a look and come back." The basement was relatively cool and damp, and Chen Yunuo didn't let his grandmother go down.

"No'er, bring Xiao Han with you, multiple people have multiple ideas." Zhang Xinyan commanded in particular.

"Okay." Chen Yunuo glanced at Yu Linghan and nodded back.

Zhang Xinyan took two flashlights from Chen Yinan's drawers and cabinets, handed them to Nuo and Ling Han, and said, "Take them all and pay attention to safety." ”

"Okay." Chen Yunuo nodded and said.

He and Yu Linghan walked down from the entrance of the ladder, about three or four meters, the light at the entrance slowly became weaker, and the further down they went, the darker it became, and they turned on the flashlight in their hands to continue walking.

Chen Yunuo kept looking forward to see how long it would take to reach the end, the light kept shining on the wall, and then he found that the walls on both sides of the stairs were made of rock, or artificially hewn rock walls, and the walls were a little wet, which should be the reason for the large temperature difference between the underground and the ground. They continued on their way, and after a long journey, they still did not reach the end.

"Why is the basement so deep? Dad too, the stairs don't even press a light. Chen Yunuo complained.

Yu Linghan took a flashlight and shone it in front and said: "This staircase is rotated down, and it can't be illuminated far away, it seems that we still need to walk for a while to get to the basement." ”

"You've been to a basement designed like this?" Chen Yunuo asked curiously.

"Hmm." Yu Ling replied coldly and continued to walk forward.

Finally, they finally walked up the staircase, originally thought that only the staircase was not installed with electric lights, but they did not expect that even the basement was not installed.

Chen Yunuo used a flashlight to shine a light on the surrounding environment, the surrounding walls were still made of large rocks, the walls were wet, and the sound of water dripping to the ground could be heard from time to time. There was a downward slope in front of them, and he and Yu Linghan looked at each other and decided to continue walking.

After they walked a long way, two symmetrical forked entrances appeared in front of them, Chen Yunuo felt that the basement designed like this was a bit strange, he was stunned for a moment and thought that this could not be a tomb, right? He'd seen an ancient tomb like this on TV, it couldn't be such a coincidence that this is a tomb, right? He paused and thought back to the distance they had traveled since they had just come down, and the basement had deviated from the house above ground by at least a kilometer, and this direction should be the bottom of the hill behind my house.

"Aren't you leaving?" Yu Linghan heard Chen Yunuo behind him stop and turned around and asked.

"Han, don't you think it's weird here? It doesn't feel like a basement at all. Chen Yunuo took a flashlight and shone it on the surrounding environment and said.

"This is a tomb, and the two on the left and right are the two ear chambers in the corridor." Yu Linghan paused, thinking that since he had found out, there was no need to hide it from him.

"Tomb? Is this a tomb? Chen Yunuo shouted in disbelief with wide eyes.

"Hmm." Yu Linghan replied flatly.

"Wait a minute, since it's a tomb, then we don't have any equipment, won't it be dangerous to go in this rashly?" He said in the way of Yu Linghan.

"Why are you taking the gold post?" Yu Linghan looked at him with his eyes and asked.

"Golden post? No, what we're going to talk about now is ...... This is the tomb, right, are we going to go back and get some equipment before we go in? Chen Yunuo was very serious and repeated to her the problems they are facing now.

"Why do you want to pick it up?" Yu Linghan asked again.

"Not for any reason." Chen Yunuo didn't want to tell Yu Linghan what he thought, although she was the granddaughter of his grandmother, he still had reservations about Yu Linghan.

He saw that Yu Linghan didn't plan to pay attention to himself, so he had to go back according to his own ideas, go back to the ground to get some equipment, and report to his grandmother before coming down, so as not to worry about her old man