Cheng Yuan (Hu Chun Yong) learns about the little run-in through his spies and reports it to Yan Xun (Shawn Dou). They also get information that the 7th Prince (Jin Jia) is heading their way with an entire army and Cheng Yuan stirs trouble for the nth time by implying that Chu Qiao may have switched sides. Yan Xun shoots down the idea immediately, but green-lights the plan to kill Yuwen Yue.
The 13th Prince (Niu Jun Feng) blocks his brother from waging war on the basis of a letter from Yuwen Yue that might not even be real. We would have known from the previous episode that the 7th Prince already knew it was fake but was manipulated by his advisor to forge ahead anyway.