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The fluorescent powder was a kind of night vision powder which could not be seen under sunlight and normal light, but only through a unique tool. Xia Tian understood this principle since he was young.

Before he left, her aunt had purposely prepared this for him.

"Put these glasses on and tell me what you see." Xia Tian handed a pair of glasses to Lin Bingbing. Due to his Insight, he did not need special glasses to see the fluorescent powder.

When Shadow left, Xia Tian sprinkled a substantial amount of fluorescent powder on him.

"You actually have this." Lin Bingbing was absolutely surprised. She was beginning to suspect that Xia Tian was a member of the Special Task Force, because his skills could only be acquired in the force.

"My aunt gave it to me — Aunt Ye. It's simple to use, but the key is the sprinkle timing." Xia Tian explained.

"Give me some, I might be able to use it in the future." Lin Bingbing reached her right hand out.