The three caves of the cunning rabbit, even if the Mojia branch does not have multiple entrances and exits, it must at least have a secret passage in and out.

It was really not easy for Mo Tao to escape this time, and on the way back, Mo Hong stayed by Mo Tao's side without saying a word, and Mo Tao had fallen asleep because of his extremely weak body.

Afraid that the main entrance of the branch would be monitored by the enemy, Mo Hong had no choice but to choose the secret passage of the branch, and a street house located in the opposite direction of the main entrance was the entrance to the passage.

After getting out of the car, Mo Tao was woken up by the small sound of the three people, and Mo Hong's steps became a little scattered when he picked up Mo Tao, "I'll carry him!" ”

Yan Mo is the one who retains the most physical strength among the three, and seeing that Mo Hong is showing signs of physical exhaustion, Yan Mo expressed his willingness to come to carry Mo Tao.

"No need! I'll do it! You'd better close the traps on the passage first! ”

glanced at Mo Hong with emotion, and then Xiao Kong and Yan Mo's eyes looked at Mo Tao who was trembling behind Mo Hong, and said enviously, "It's really happy to have such a brother." ”

opened the lock on the door of the house, a house in the form of a courtyard house made Yan Mo very emotional, once his own residence was also like here, although it was dilapidated, but only he understood its value and meaning.

"The entrance is in the cellar!" Just when Yan Mo closed the door and turned around to look for them, Mo Hong had already walked to the edge of the cellar and looked at Yan Mo.

"If I'm not mistaken, there should be a ventilation device in the cellar, you guys wait a minute, let's let the air circulate inside the cellar before going in!"

Mo Hong lifted aside the stone slab covering the cellar, and then took out the match in his pocket and lit it, and then reached into the cellar, and before the match could get close to the cellar, the match that was still burning was extinguished at once.

After throwing away the matchstick, Mo Hong reached into the mouth and gaggled. Immediately after, the sound of the fan turning slightly echoed in the cellar, very faint, but it was obvious that you could feel the turbid rotten gas coming out in front of the cellar, and when you stretched out your hand, you could feel the slightly cool gas being pulled into the cellar.

After a while, Mo Hongyou took out a match, and after the experiment, the match burned to the end before it ended!

"Let's go inside!" After confirming that the oxygen content in the cellar was sufficient, Mo Hong once again picked up Mo Tao, who had put him on the ground. At this time, Mo Tao was in a half-asleep state, and everyone could hear what they were saying, but it was difficult to wave his fingers.

"Under the third tile on the right side of the floor in front of the button to turn off, tap the tile three times, the tile will automatically open, and then the switch button will be simple!" Walking through the cellar, Mo Hong, who was in front of a long corridor, told Yan Mo about the control organ that closed the secret passage because it was inconvenient for Mo Tao, and Yan Mo was under Mo Hong's guidance. After turning off the trap switches in the entire corridor one after another, the four of them finally stopped in front of a door with ink written on it after ten minutes.

"Come on! Yan Mo, insert your dagger into the dot at the bottom right of the ink word, and then we can enter the branch! Mo Hong, who stopped in front of the door, looked at Yan Mo helplessly. It was only here that he told them the key to open the last door of the secret passage, which was Yan Mo's dagger!

"I can't think of it!" Yan Mo looked at Mo Hong without saying a word after hearing Mo Hong's words, but Mo Hong looked at him with a smile, "This door only needs the password inside to go from the inside out." There are only two ways to open it from the outside to the inside, break it or use the real key to open it, and you are the one who has the key to the secret passage of the Mo family's branch! So so to speak. You can enter and exit the doors of all branches of the Mo family unimpeded! ”

"Alright! I get it! After Yan Mo finished speaking, he took out the dagger and stabbed it into the point of the ink without thinking, after stabbing in, Yan Mo obviously felt a small warm current coming from the dagger, and after that, the dagger trembled slightly, like a sleeping beauty shook her long eyelashes, making Yan Mo lose her mind for a moment, and the hand holding the dagger became tighter.

Just listen to the sound of wiping, the whole door moved back the width of a dagger, and then the door began to open from the middle, after the ink word was separated in half, the door disappeared into the stone crack on the side, and the road ahead suddenly opened up, not only that, the road in front of it was full of bookshelves, and rows of books were neatly arranged, which made Xiaokong rush over excitedly, as if he was in a sea of books, and there was no shortage of books on the shelves that Xiaokong liked!

Like a dream, Mo Tao's hand slowly raised up, pointing to an inconspicuous corner of the bookshelf on the right, Mo Hong followed his guidance to the bookshelf, and gently put him down at Mo Tao's request, Mo Tao stared at a pharmaceutical book on the bookshelf for a long time, Mo Hong reached out to help him take it out, but Mo Tao's eyes were still staring at that position, and when Mo Hong looked there again, he suddenly realized that Mo Tao's attention was after this generous pharmaceutical book.

Mo Hong and Mo Tao's strange behavior attracted the attention of Xiao Kong and Yan Mo, and the two walked to their side, and saw the secret hidden behind the book the moment Mo Hong took out the medicine book.

A completely unreadable dark compartment had been opened, and a yellowed thread-bound book had three large imitation Song characters written on it, 'Alchemy'.

After taking out the 'smelting', Yan Mo put the book in his hand and slowly opened the first title page, the first page roughly introduced the beginning and origin of 'smelting', at first it was a widely used metallurgy, and then after several generations of improvement and good use, the ancestors came up with a more diverse variety of special materials in the attempt, and the decomposition of materials has also become a technology, so that metallurgy is no longer just metallurgy, but has developed into what they now call smelting under the hands of these skilled craftsmen.

Some of the handwriting on the pages of the book is so mutilated that it is impossible to see it, and the phenomenon of missing words and hyphenation makes it a little difficult for Yan Mo to read the whole article, the more he turns back, the more and more the pages are occluded, and the last whole page is covered by dirty yellow, completely losing its value!

Mo Tao also looked at the book in Yan Mo's hand with a gloomy expression, and his breathing became more and more difficult, Mo Hong had already guessed what kind of place this was, there was only one place in the branch that he could not enter, but he didn't expect this place to be the exit of the secret passage, no wonder he was strictly required to strictly prohibit entering here when he was the deputy head of the branch, it seems that the secrets here are not accessible to himself!

"Senior Brother Mo Hong will take Senior Brother Mo Tao back for treatment first! Sora and I will stay here for a while! Mo Tao's physical condition gradually became worse, and Mo Hong had already carried Mo Tao on his back and made a move to leave.

"Okay, I'll wait for you outside.!" After Mo Hong finished speaking, he walked out through the exit. (To be continued......)

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