Introduction to the Broken Cocoon Mountain House: The Broken Cocoon Mountain House is a circular roofless corridor. When Tang Xianzu was old, he called himself "Cocoon Man". His original intention was that after abandoning his official position and returning to his hometown, he wanted to be like a cocoon and "do nothing about the world and just die in it." However, in the end, he turned the pen in his hand into a sharp gun and completed the Linchuan mission in his hometown. The final creation of Four Dreams.