Let Xie Xun prepare the pen and paper, Wen Qinsang relied on his memory, and after drawing the floor plan of the underground Colosseum with a pen, he handed it to Chen Anning first and asked her if she wanted anything to add.

Chen Anning shook his head.

Wen Qinsang handed the picture to Xie Xun again.

After Xie Xun made up a few strokes, he returned the picture to him.

Wen Qinsang picked up his pen again, drew three circles in the 'Hundred Fruit Garden', and then drew one circle in each of the other three 'Orchards', and looked at Xie Xun inquiringly.

Xie Xun said: "It's also one." ”

After Wen Qinsang drew circles in the positions he had previously added, he lowered his eyes and pondered for a moment before drawing two circles on the six iron gates leading to the main courtyard.

After that, he kept drawing eighteen triangles on the main courtyard behind the iron gate.

"These are the nine entrances and eighteen exits of the Colosseum underground?" Chen Anning asked.

Wen Qinsang put down his pen and nodded lightly, "Yes." ”

Chen Anning glanced at him, then at Xie Xun, looked at the two of them with rather heavy faces, and asked tentatively, "Is there a problem with this entrance and exit?" ”

Wen Qinsang motioned for her to look at the floor plan, "You take a closer look at the distribution of entrances and exits. ”

Chen Anning took the floor plan, looked at it carefully for a while, and said: "Of the nine entrances, seven are distributed in the 'orchard', and the other two are located in the labyrinth. Eighteen exits, all ......"

"Labyrinth?" Wen Qinsang sighed as if surprised and understood, and then asked Xie Xun, "You are not mistaken, is it really a labyrinth?" ”

Xie Xun's voice was a little deep, "It's a labyrinth." ”

"No wonder." After Wen Qinsang sighed again, he looked at the zoo between the orchard and the Colosseum with Xie Xun.

Chen Anning followed the gaze of the two of them, and also looked at the beast park, and after a while, he slowly said: "If there is no one to guide the way, it will be almost difficult for our people to break through the maze." In other words, these two entrances are basically unusable. But the other seven entrances ......"

"Steward Kang and the others are familiar with the entrances to the two labyrinths, and the underground Colosseum is also guarded all year round. In the event of an attack, they only need to release all the beasts, and they can basically get rid of the crowd tactics. ”

No matter what the 'orchard' is, the iron cages are densely placed and disordered.

After the Yulin army entered, it was bound to diverge with the iron cage.

Whether it was seen tonight or from the mouth of the black-clothed masked man, once those beasts were out of the cage, their attack power was extremely powerful.

Even if the Yulin Army can kill them after being diverted, it will inevitably pay a great price.

In addition, it is necessary to save people......

"It's secondary." Wen Qinsang sighed again, "Since there is a labyrinth, it means that there are still countless hidden passages that we can't snoop on. Through these secret passages, they have countless ways to attack us. Take the simplest fire attack as an example, in such a poorly ventilated underground place, it can be said to be efficient and lore. ”

"And from the observation at the Peace Square that afternoon, it is very likely that the unexpected situation will be dealt with with by fire."

Xie Xun looked at Chen Anning, "Your poisonous ......"

"Nope." Before he finished speaking, Chen Anning vetoed, "If you want to use a certain poison on a large scale, the external force that must be used is the wind, and the underground Colosseum, what is most lacking is the wind." ”

"In addition, the doctor surnamed Jiang I met today is not low in his medical skills."

"Since they even thought of the fire attack in advance, then the antidote pill must have been prepared a long time ago."

Looking at the increasingly heavy faces of the two, Chen Anning changed his words and said: "Although you can't use poison on a large scale, you can take advantage of the opportunity to choose the beasts to poison the beasts one by one." Therefore, the only thing to be solved at the moment is a fire attack. ”

Wen Qinsang asked Xie Xun: "What is the situation of the eighteen exits?" ”

Xie Xun's eyes lit up suddenly.

He stood up, walked back and forth in the house a few times, and replied, "Those eighteen exits are also part of the labyrinth!" ”

Chen Anning and Wen Qinsang were not allowed to change their faces, he suddenly looked at Chen Anning with a smile and said, "You just said that you must use the wind to use poison in a large area?" ”

Although Chen Anning didn't know what medicine he was selling in his gourd, he still nodded cooperatively: "Not bad." ”

"To use poison in a large area, you need to use the wind," the corners of Xie Xun's mouth hooked slightly, "So if you want to use fire attack, does it have to be in a confined space?" ”

Chen Anning nodded again.

Xie Xun looked at her, then at Wen Qinsang, and said calmly and firmly: "The section of the labyrinth from the Colosseum to the main courtyard, I have carefully observed, and they are all forks dug out on the original soil layer. ”

"If you want to be unaffected by the maze and let the air circulate to break the fire, you just need to destroy the maze."

"It's much easier to destroy the labyrinth."

Wen Qinsang said: "Trebuchet. ”

"Almost." Xie Xun said, "As long as the exit passage is dug up a little first, and the stones are rolled all the way down, most of the maze can be destroyed." As soon as the labyrinth is broken and the earth accumulates, then the only way to get in and out is through the seven passages of the 'orchard'. ”

"The solution is good," Chen Anning reminded, "but don't forget, those boys and girls are locked in iron cages, and after the earth blocks the exit, forcing the other party to no longer attack with fire, it is difficult to guarantee that they will not kill these boys and girls to vent their anger." ”

Wen Qinsang nodded, "The labyrinth can't be destroyed, as long as some people hide in the secret passage and shoot these young men and girls, I'm afraid it's ......."

Xie Xun said resolutely: "So the action must be fast!" ”

"When we enter the Colosseum at night, the Dark Guard will use the poison you prepared to deal with all the animals on the ground. After that, they will quickly enter the underground Colosseum through the entrance, scattered among the various 'orchards'. When the operation to destroy the labyrinth begins, the Yulin Army will also quickly enter the underground Colosseum through the entrance. ”

"No one can guarantee that nothing will go wrong, so we can only do our best to rescue and arrest them."

Chen Anning's heart was suddenly sullen, and she thought of the girls who sent tea and fruit snacks tonight.

They did nothing wrong.

It's just that they can't act tonight because of various unexpected circumstances, so they have to pay a heavy price for it.

"I want to destroy the underground Colosseum and rescue the imprisoned boys and girls," Xie Xun relieved, "There is no way to avoid the necessary sacrifices." ”

Chen Anning said with difficulty: "I know. ”

Just know and know.

Emotionally and ethically, she can't accept it calmly.

"It's almost dawn," Xie Xun glanced out of the slightly open window, the pink sky, and urged, "Go and rest." Only by keeping your spirit up can you avoid more sacrifices. ”

Chen Anning also glanced out the window, then turned around and went to the guest room next door.

Xie Xun stayed and discussed with Wen Qinsang about the layout of the underground Colosseum for nearly half an hour, and then made the night action more detailed, and set the time at midnight before he came out.

After pausing at the door, she slowly paced to the door of her room, listened to the movement inside for a while, and then walked away from the Laifu Inn and secretly returned to Dali Temple.

After learning about their activities last night and explaining to them about tonight's actions, Xu Zan and Wen Baolin, who had already rushed back, secretly entered the palace again.