after chatting with Lin Hai for a while, Lu Chen returns to his residence, opens the door, and sees a letter on the table.

there are prohibitions on the letter. It's left by the great immortal method of Xuening heart method. It's impossible to open the magic door of the ancient immortal method. As soon as Lu Chen saw it, he knew it was left by four calamities. When he went to open it, he would not be angry.

there is a saying in the letter: Jin Xiu and I went out of the city and took a task. The time is uncertain. You should be careful.

in the dust...