Tang Fan warns the seller that someone wants to catch them. The seller realizes that there is something wrong with Tang Fan. Sui Zhou catches the seller but then they are attacked by men in black. Turns out there is a secret tunnel. Pei Huai confesses his feelings for Tang Yu. The emperor has a new weapon in his war against another country, but the enemy also has a secret weapon of their own. Tang Fan decides to help find Aras for Duo Er La. The only clue is that the antidote was probably given by him. (Source: jindreame at MyDramaList)