Xuan Fengnian was indeed secretly observing Mai Chengxing and Mike.

However, as Ye Chen speculated, he did not enter directly into the Buckingham Palace, but chose to keep an eye on the dark outside Buckingham Palace.

This is mainly because Buckingham Palace is full of people and has a very complete surveillance system. If no one helps, the possibility of completely hiding surveillance is almost zero.

Xuan Fengnian felt that with his own skills, he could closely monitor everyone entering and leaving the hotel outside Buckingham Palace. As long as Mai Chengxing and his grandson left, he could follow him all the way.

He did not trust Mai Chengxing and Xuan Fengnian. On the one hand, he was worried that Mai Chengxing would be passive and lazy and would not help him find the mysterious person. On the other hand, he was worried that Mai Chengxing would steal his credit.

After all, in his opinion, Mai Chengxing is not a good old guy.

So the best solution is to keep a close eye on Mai Chengxing. If this old guy dares to make trouble on his back, he will solve him first.

However, Xuan Fengnian didn't know that Mai Chengxing had already turned against the water at this time.

After leaving Mike in Buckingham Palace, Mai Chengxing left Buckingham Palace alone and went to the Du family's old house according to Ye Chen's instructions.

Xuan Fengnian was very confused. He didn't know why Mike didn't come with him, but he thought that Mike's youngness wouldn't have any real skills, so he was not afraid that Mai Chengxing was playing with him to lure his tigers away from the mountain.

So he followed him in a rented Volkswagen sedan.

Mai Chengxing pretended to be alone by the old Du family house for a long time, then took out a compass and talisman paper to tinker with it. Then he pretended to have gained something and stopped a taxi. He first went to the Forbidden Mountain Tunnel where the incident happened, and then returned to the city for a while before finally returning to the Buckingham Palace Hotel.

Xuan Fengnian followed Mai Chengxing to the old house of Du, then to the Zijinshan Tunnel, and followed him around Jinling for a long time. He became more and more sure that this old guy must have found some clues.

So, after Mai Chengxing returned to the hotel, he called Mai Chengxing and asked on the phone with a pretentious concern: "Mr. Mai, I wonder if there is any progress in things?"

Mai Chengxing was originally planning to call Xuan Fengnian, but he didn't expect that the other party called the phone first, so he followed Ye Chen's instructions and said, "Master Xuan, I ran out for a long time. As soon as I returned to the hotel, your phone number came."

Xuan Fengnian asked with a smile: "Oh, Mr. Mai is going on, I guess this matter must have made progress. I wonder what the result is?"

Mai Chengxing said: "To be honest, things have indeed made great breakthroughs."

Xuan Fengnian hurriedly asked: "What kind of breakthrough is there? Is it accurate to the human being?"

Mai Chengxing said in a little embarrassedly: "Well... Master Xuan, I'm sorry, I'm sorry to say it clearly on the phone..."

Xuan Fengnian said with some displeasure: "What's wrong with this? Tell me the clue directly and I will find that person and kill it. In this way, you and I can go and report it like Mr. Su."
Chapter completed!