…
The letter was written in a sprightly manner, and one could tell from the back that there were quite a few words.
She pinched a corner and shook it for a while. When it was dry, she rolled it up.
She rolled it up thin and stuffed it into the small bamboo tube tied to the carrier pigeon's ankle.
She grabbed a handful of nuts from the lunchbox, placed them in her palm, and fed some to the carrier pigeon.
The carrier pigeon nodded and ate. After it was full, Su Ji opened the window. The carrier pigeon could not bear to look back at her, so it spread its wings and flew away.
Its figure disappeared into the night sky.
..
By the time the reply reached Prince Huai, it was already past midnight.
Shen Mu carefully took the small bamboo tube from the pigeon's ankle. He walked along the wall and sneaked into the house, handing the bamboo tube to the prince in perfect condition.
Then, he closed the door.