When He Cuo heard this, he was stunned for a moment, and walked in front of Zhang Youcai with a single step, squatting on the ground, staring at his upper, and looking at it carefully.

"Princess, are you referring to the black mark on his upper?" He Cuo pointed to the black mark on Zhang Youcai's left foot and asked.

Li Qing asked again: "Can you see what it is?" ”

He Cuo looked at it carefully, wiped it with his fingers a little more, twisted it, and said, "This is soot." ”

Li nodded lightly, "Lord Wang, Mr. He is right, this is coal ash." ”

"What's wrong with this soot?" Hua Xiao asked the questions in everyone's hearts.

Li chuckled and asked Zhang Youcai again: "Zhang Youcai, let me ask you, when did the soot on your shoes rub on?" ”

Zhang Youcai replied, "This ...... Where does this minion remember clearly? Slaves deal with firewood and coal all day long, and it is common for them to rub coal ash on their bodies. ”

Li said lightly: "It's really not strange that you rubbed coal ash on your body, but the strange thing is that there was also coal ash at the murder scene, which is a bit of a coincidence, right?" ”

"What?!" He Cuo's eyes widened suddenly, "There was soot at the murder scene?!" Lord Wang, humbly request to re-inspect the scene. ”

Hua Xiao looked at Li Qing suspiciously: "How do you know that there is coal ash at the scene?" ”

If he remembered correctly, Li Qing just went in to take a look, and he was kicked out not long after he went in, and they didn't find the coal ash, how could she find it?

Li lightly straightened the hem of her skirt, exposed the toes of her two feet, and said: "I was in the cave, and I found a black mark on the ground, I don't know what it is, I wanted to take a closer look, didn't you drive me out, lord?" I didn't have time to take a closer look, so I had to rub a little dust with the tip of my shoe, and when I came out, I saw that it was soot. ”

Hua Xiao looked down and really found that there was a black mark on the tip of the embroidered shoe on Li Qing's right foot.

As soon as he raised his head, he bumped into Li Qing's faint smile just now, and his heart suddenly trembled for no reason.

"It's wronged, and there may be soot in other people." Zhang Youcai shouted injustice.

Hua Xiao glanced at Zhang Youcai, and the sharpness of the blood in his eyes made Zhang Youcai feel cold, and his head and feet were numb. Zhang Youcai shuddered, choked in his throat and almost choked to death.

Hua Xiao commanded: "What's wrong! Re-inspect the site. ”

"Yes!" He Cuo held his small wooden box and ran in the direction of the rockery.

"Mr. Ho." Li Qing stopped him again.

After this incident, He Cuo naturally had respect for Li Qing, he stopped, and asked respectfully, "What else does the princess command?" ”

Li said lightly: "Didn't Zhang Youcai shout injustice? I think that since it is the scene of the murder, there must be fingerprints left at the scene, if Mr. He can successfully extract the fingerprints, then we will not be able to know who is lying, who is really wronged? ”

He Cuo's eyes lit up, and then he said with an embarrassed face: "The princess reminded me, but that place is so empty, I'm afraid it's a little difficult to extract the palm print." ”

"Is it empty?" The corners of Li Qing's mouth hooked slightly, "It's just a rockery passage, it's not empty, right?" ”

"Are you embarrassing Mr. He?" Sheng Shan'er, who had always felt aggrieved from the first time she saw Li Qing, finally found an opportunity to fight back: "Even if you are now a princess, you can't rely on your identity to make it difficult for you." Do you know more than Mr. He? ”