Nodding, turning around, Xu Feng began to lead the way - climb!

This air duct can only be climbed forward, but Si Yao feels that it should not be the same duct as the previous one, after all, there is no scent of incense, not even a little bit left.

Thinking about it, it might be because there are different ventilation ducts, so the person before was not stunned by the incense.

The two of them climbed along the pipe for a while, one after the other, and finally stopped.

Xu Feng carefully listened to the movement below, and after making sure that there was no one there, he looked down again, and finally removed a cover and jumped from above.

Si Yao followed suit and jumped down, moving the cover back to its original position.

He looked up and then looked back. The two of them were already standing on the outermost side of the experimental building.

"You are here, you have worked hard!" Si Yao was very emotional.

It must be very difficult for him to find such a hidden escape route, know so many secrets, and have not been discovered for such a long time.

"I just wanted to do something before I died, but I didn't expect it, but it didn't help me!"

Thinking of this, Xu Feng felt very guilty, almost causing greater trouble to his wife.

"It's not your fault!" Si Yao also heard Su Yun tell him about this. The last thing she said was that Xu Feng should come back to take good care of himself and detoxify him when she comes back.

However, I can't even do this, I still have to let Xu Feng run around.

"President Si, go this way!" Xu Feng led the way, and he didn't delay any longer, after all, time waits for no one.

Familiar with the road, he quickly found the boss's office. It was a tightly guarded place before, but now it was easy to get in. When he came out of the elevator, he saw that there was no one on duty. Xu Feng stopped.

"What?" Seeing him stop, Si Yao knew that he must have found something wrong.

After hesitating for a moment, Xu Feng turned to look at him, "I think there shouldn't be one here either."

Si Yao immediately understood what he meant. If there was one here, there must be someone guarding it, or they would not be allowed to come up so easily. Since it was so easy, people would also be robbed easily.

With Zhou Xiao's mind of nine bends and eighteen bends, it is absolutely impossible to do such a thing.

"Anyway, since we're already here, let's go and have a look!" Si Yao said after thinking about it.

Xu Feng felt that what he said was right, so he walked straight into the office.

The office was in a mess, everything was thrown everywhere, and the huge place looked so messy that it felt like there was no place to set foot.

However, the door leading to the secret room is also open, and you can see inside at a glance.

"Empty!" Xu Feng looked over and said.

Si Yao naturally saw it too, not only was the inside empty, but it was also very dirty. From the moment he entered the door, he could smell a rancid smell.

He immediately remembered what Lin Shangyan said before, and said to Xu Feng, "There may be virus residues here, be careful!"

Xu Feng was startled, but he became more cautious and walked in cautiously.

The secret room can be seen clearly, and there is no place to hide anyone inside. As for the outside, it seems that someone has rummaged through it. The documents and books on the bookcase have been thrown everywhere, and there are obvious signs of turning.

"Someone has been here before." Si Yao said with a light glance.

"Zhou Xiao?" Xu Feng said after thinking for a moment. JrNovels.com