Siheyuan: Uncovering Secrets, Starting with a Chicken

At the entrance to the courtyard, Bang Geng finds a letter with no recipient's name. Its message is simple and clear: "Chicken = trouble."

Who wrote the letter?

Who was it meant for?

Everyone who sees the letter realizes it concerns them. Was it planned, or just a coincidence?

Everyone in the courtyard has their own suspicions. By coincidence, those who receive the letter have all done what it describes. Who wrote it, and to whom?

Those who have read the letter can't eat or sleep easy!

This novel and its characters are entirely fictional. Any resemblance to actual persons or events is purely coincidental. Do not imitate.