When she walked to the first floor, Qiao Tian sniffed, why did she think that the smell in the air was stronger than just now?

The two of them walked to the account room and found a string of keys hanging from the dusty hook.

Ding Qi couldn't wait to reach for it.

"Wait. Qiao Tian stopped him and reached out to take out a handkerchief from his arms.

Thanks to Shen Linyuan's blessing, Qiao Tian developed a habit under his supervision in disguise, and every time he went out, he didn't forget to bring a handkerchief.

As soon as the white handkerchief touched the black hook, it was instantly stained with a black mark.

Ding Qi was puzzled, "Isn't this just falling ashes? ”

Qiao Tian glanced at him, "I was so cautious just now, why did I forget it now?"

Ding Qi looked at the row of hooks carefully, but it really made him find something unusual.

"The color on the top and the bottom are different. ”

"That's right. Qiao Tian nodded, "I don't know what this layer of powder is, I'll collect some of them first and hand them over to professional people to study." ”

"Okay!" Ding Qi nodded, lowered his head and unzipped his backpack, rummaging through something.

Qiao Tian took out the handkerchief paper in his pocket, carefully dipped the black powder in the paper towel, carefully folded it, and put it back into the original packaging.

After doing this, Qiao Tian looked up and saw the mask in Ding Qi's hand.

She was surprised, "Why did you still prepare this?"

Ding Qi was proud, "I've made plenty of preparations." ”

Qiao Tian smiled and casually took his mask belt, "Then have you prepared gloves?"

Ding Qi's smile froze, and he touched his head in annoyance, "I really didn't prepare for this." ”

"It's okay, just have this handkerchief. ”

After Qiao Tian carefully put on the mask, she looked at the keys in the three rows under the table.

The room number is not written on the top of each key, and the size of the key is the same, so it is also a lot of work to find the corresponding room.

Qiao Tian's eyes sank, and he motioned for Ding Qi to get out of the way.

Although there was no one in the inn, there were still teacups on the table in the lobby.

Qiao Tian walked over and picked up the teapot and wiped it with the other end of the handkerchief.

The top is clean, the place of the handle is nothing but dust, and it looks safe.

She weighed it twice, a satisfied smile on her lips.

Ding Qi kept looking at her suspiciously, until she smashed the cup into the row of hooks, and then cast an admiring look at her.

He's a ruthless person, yes.

But......

"Why don't we take the keys off one by one?" he wondered.

"The keys don't have a number on them, and I guess that might have something to do with the order on the hooks, which can be messed up when taken off. ”

"I didn't think that you were so smart. ”

Qiao Tian's expression was faint, and he kept smashing the wooden strip in his hand:

"I saw that the edges of the sticks were rotten, and it was easy to take them off, so I came up with this method. ”

Before he could finish speaking, the sticks fell to the ground.

"Then I'll go find the order of the keys now. Ding Qi's desire to solve the mystery ignited in his heart, and the current scene gave him the illusion that he had escaped in the escape room.

"Pay attention to the quantity. Qiao Tian pointed to the key.

"The first row is nine, the second row is eleven, the third row is thirteen, I remember them all. ”

Qiao Tian stopped him, "Do you have a plastic bag in your bag?"

Ding Qi turned around, "There is a bag for things." ”

"That's right, I put the key in. ”

Suddenly, there was a voice from upstairs, and this time it was much louder than just now.

The two looked at each other and ran upstairs together.

"Hu Die?!"