Princess Consort Yu Wen had previously instructed the palace maid that after finding the secret letter, she should not take the original but instead make a copy.
The palace maid lay on the ground, using the curtains as cover, and hurriedly copied the contents of the letter.
When she reached the bed, she intentionally kicked a leather ball used in cuju play gently over.
The ball rolled from under the curtain to the front of Li Can's bed.
Li Can lay on the bed with his back turned.
Princess Consort Yu Wen sat on the edge of the bed, massaging Li Can's shoulders.
When she saw the ball roll over, she gently coughed.
Li Can, having exercised with a young concubine earlier, was tired and soon fell asleep under the massage of Princess Consort Yu Wen.
Princess Consort Yu Wen stood up quietly, walked outside the curtains, and took the copied letter from the palace maid to read.
Seeing the contents, she was shocked.
