He ended his cultivation. Shi Qingsheng came from outside.
"Lord Shen," Shi Qingsheng said, "someone has delivered a letter; it was specifically meant for you."
"A letter for me?" Shen Changqing's eyebrows raised slightly as he took the envelope and waved Shi Qingsheng away. He opened the envelope. Inside, he found a white piece of paper, devoid of any marks.
Shen Changqing stood up, fetched a bottle of white wine, mixed it with tea, and slowly rubbed the mixture onto the white paper. Soon after, he took it outside, directly into the sunlight. After a few breaths, black characters suddenly appeared on the previously blank paper.
As expected! A smile touched Shen Changqing's lips. Upon receiving the white paper, he had immediately thought of the Heavenly Inspection Guard's coded messages and, drawing on his memory, deciphered the concealed writing. Just as he anticipated, the secret message's content appeared on the paper.
