"That's good!" Li Si said, turned to look at Doudou: "Doudou, let me see if I can take you out! Can you take me to the place where you woke up to see?"

"Okay, dad, come with me!" Doudou said excitedly when he heard Li Si want to take him with him.

"There are still people here! But why can't I hear him?" Robert asked in surprise.

"You don't need to worry about this, you just need to follow me!" Li Si said and asked Doudou: "Come and grab your uncle's hand. I'll see if you can make that monster invisible!"

"Well, okay uncle, please hold my hand!" Xiaozhengtai Doudou said as he stretched out his hand and asked Li Si to hold his hand. Li Si grabbed Doudou's hand, and Li Si disappeared in Robert's inexplicable eyes.

"Hey? Where have you been?" Robert reached out to where Lis is, but only grabbed a ball of air. Lis, who was invisible, found that Robert's hand actually passed through his body without any impact on him.

"Robert!" Lis shouted, but Robert seemed to have no idea of ​​anything. He continued to wave his hands in place and kept talking about where the person was going.

Lis grabbed Robert's arm, but found that he would also pass through and could not catch Robert's arm.

"Strange!" Li Si let go of the hand that grabbed Xiao Zhengtai Doudou, showed his body, and said to Robert: "I'm here, you're holding my arm!"

"Where did you go just now?" Robert asked.

"I can't explain it clearly for a while, you are holding my arm!" Li Si said.

"Oh, OK!" Robert reached out and grabbed Li Si's arm, "Okay!"

"I'll try it, can it work!" Li Si reached out to Xiao Zhengtai Doudou's arm.

"Dad, I feel so uncomfortable!" After Little Shoto Doudou was caught by Lis, he spoke out. Lis glanced at Robert, and Robert was actually taken into invisible. Don't ask Lis how he knew, because Lis' arm was still firmly grasped by Robert in his hand, but strangely, Robert in invisible still couldn't see Doudou.

"Doudou, how are you?" Li Si asked, looking at Doudou's ugly little face.

"I don't know, dad, but I feel so uncomfortable!" Xiao Zhengtai Doudou spoke like she was holding her breath, and it seemed like she had a lot of effort to say anything.

"Is it because of the consumption too much?" Li Si murmured and let go of Xiao Zhengtai Doudou's little hand. It turns out that after Li Si let go, Xiao Zhengtai seemed to breathe a sigh of relief and his face returned to calm.

"Dad, I felt so uncomfortable just now!" Xiao Zhengtai Doudou patted her chest and complained to Li Si.

"Well, I understand, it may be because of the consumption too much! Let's go like this first, don't use your abilities until the critical moment!" Li Si said with a touch of Doudou Xiao Zhengtai's head, then turned around and looked at Robert and said, "Let's go. Just be careful!"

"Well, what happened just now is so amazing. I feel that the invisible potion has some improvements, and it has not reached its extreme yet!" Robert seemed to be immersed in something. He was shocked by Li Si's words, and then came to his senses. He pulled Li Si's arm and said excitedly: "Yes, there are indeed some improvements. The teacher is not completely correct. I will make it out when I go out!"

"Okay, okay. Let's talk about these things when we go out!" Li Si threw away Robert's hand and walked out the door first.

"Doudou, come and lead the way! Go out and see the situation first!" Li Si asked the invisible Doudou Xiaozhengtai to take the lead, and he and Robert followed behind.

The three of them left the house in a row, with the stealth ability of Xiao Zhengtai Doudou. In addition, the station was in chaos now, Li Si and Robert followed Doudou to leave the central area of ​​the guild's residence smoothly and came to a edge, where there was a hole.

"Dad, this is the cave I came out of before!" Doudou pointed to the cave and said to Li Si.

"Is this cave very deep?" Li Si asked while looking at the cave. It can be seen that the people from the Tang, Song, Yuan, Ming and Qing dynasties expanded the entire underground station through these caves.

"It's not too far. They are almost digging to the bottom of the cave!" Doudou said.

"So have anyone ever been in?"

"Yes, many people have been in, but Doudou said hello to them and they ignored Doudou!" Doudou Xiaozhengta said that this matter was still a little aggrieved.

"Well, I won't know anymore, uncle will play with you!" Li Si now knew Doudou's situation. Although he didn't know what the little boy came from, Li Si didn't mind being surrounded by a child without any hostility, "Let's go in and have a look!"

Li Si and Robert followed Doudou Xiaozhengtai into the cave. The cave did not turn around, but a straight passage led to the end of the cave.

"That's it, Dad, Doudou woke up here when she woke up. When she moved, she fell to the ground. It hurts so much!" Doudou Xiaozhengtai said, pointing to a small pit on the top of the cave.

"Are you on top?" Li Si looked at the top of the cave, which was about two meters high. There was indeed a pear-shaped round pit on the top. Li Si looked at it for a long time but couldn't see anything strange.

"Observe! Search!" Li Si used all the exploration skills, but still did not find anything. Li Si held his sword staff and kept slashing around the pit, but he did not find anything.

"What do you think this is?" At this moment, Robert's voice sounded, and Lis looked at Robert, and saw a shabby, rusty gray-brown iron lump in Robert's hand. "I feel this thing is very special!!"

Lis took the iron lump from Robert's hand, looked over and over again and again but couldn't see anything strange. If he threw it on the ground, it would be like a rotten stone, completely inconspicuous, and he didn't know how Robert found it.

Ding! System prompt: Obtain unknown items.

"Unknown items, this is the most annoying thing. Robert, do you think it is special?" Li Si frowned and looked at the system prompt, confused, and looked up at Robert and asked.

"Well, it's very special, it makes me feel very strange. With my years of experience, this thing may be the thing you are looking for!" Robert said with a serious expression.

"This thing? How do you feel about Doudou?" Li Si turned around and asked Doudou Xiaoshouta.

"I don't feel anything!" Doudou Xiao Zhengta was so confused that she looked at the iron lump.

"Unknown items seem to be something that restricts Doudou's actions!" Li Si raised his head: "Let's go, let's try it out!" (To be continued, please search for Astronomy, novels are better, updated and faster!
Chapter completed!