Li Xian asked, "What exactly does the smoke signal look like?" The yamen runner, Liu Ping, responded with a description of the smoke signal's appearance. Li Xian gazed intently and saw countless fireworks in Yuanbao Square, each rising and falling, echoing for half an hour, yet never ceasing.
Suddenly, a firework burst forth, its shape very similar to the smoke signal. But it was hidden among the vibrant sea of fireworks, completely unnoticed. Li Xian thought to himself, "Indeed, that person is very cunning. He anticipated that tonight would be a trap waiting for him, so he waited for the fireworks festival to act. Even if exposed, the smoke signal would be concealed, buying him time. The operation has already begun. Yuanbao Square is quite far from here, and I'm unfamiliar with the terrain, making it difficult to reach promptly."
