"It’s simple. Just channel your True Essence into the talisman, and it will activate. After four hours, the effect will wear off, and it will become a useless piece of paper," the man explained. "Give it a try." Lin Xiaolong handed the invisibility talisman to Monica. Monica took it and channeled her True Essence into it. Instantly, her presence vanished without a trace. The effect was impressive; even Lin Xiaolong, had he not seen her standing right there, would have found it difficult to locate her through her aura.
"How is it, Brother Long?" Monica asked.
"It certainly conceals your aura," Lin Xiaolong replied. "But have you noticed any changes while using it?"
Chapter 622