Gao Bing Zhu and Wu Si Yue investigate the temple disguised as a couple. The priests are guarding a gate. The elixir poisons one of the guests and gives Gao Bing Zhu and Wu Si Yue time to sneak inside. They learn that they are making elixirs and the Eastern Palace may be involved. Nobody wants to help them since it might be connected to the Crown Prince. Liu Feng and his dad confront each other at the brothel. Wu Si Yue talks to the crown prince and a fire breaks out. (Source: jindreame at MyDramaList)