Everything is business as usual.

……

In the living room on the first floor.

Honghu Yufei stared at the clock on the wall and tapped his knees.

After a while, Jiang Qian, wearing an invisibility cloak, emerged from the wall next to him.

He quickly put away the invisibility cloak, held the button and came to Honghu Yufei: "New clue."

The nervous voice of the night dragonfly came from inside the button:

"Teacher Qianlong, you are really knowledgeable! Sure enough, there is an employment contract. She is a domestic helper. The female worker is 46 years old. The two parties had a cooperative relationship for five years before, but she was fired not long ago because the household wanted to sell the house and move.

!"

Jiang Qian and Honghu Yufei looked at each other and continued: "Look for the decoration records of this house and see what year it was."

……

"Yes, yes! It was about six years ago, the first year after the couple bought a house!" Night Dragonfly opposite said in surprise.

"Okay, come back. Pay attention to those three people when you go downstairs. They are near you." Jiang Qian finally reminded.

"Okay!"

Putting away the buttons, Jiang Qian probably had a complete idea.

Four buttons were recovered from his body one after another, and there were three more. One was with Ye Qiangwei and the others, one was with Lin Zhuo, and the other was with the long-haired girl who was hiding in the baby room.

Jiang Qian looked at Honghu Yufei: "I probably know what's going on, but the information chain to turn off the secret is not complete... still needs some key tips."

Honghu Yufei's expression was equally urgent: "But it's going to get dark soon, and there are still ten minutes left!"

At this time, Ye Qingfei and others happened to run to the stairs.

Jiang Qian stared at the wall clock on the wall, carefully observing the minute hand and the relative movement of the second hand... He was shocked in vain:

"No! Someone has adjusted the hand speed of the wall clock. We have no time..."

As soon as he finished speaking, all the lights in the entire room went dark instantly.

……

PS:

Correct typos and defects first!
Chapter completed!