Under the Power Episode 18

Jin Xia meets a Poison maker who is related to Lu Yi. While trying to find her way through the maze, in the well, she is chased by pirates. When Lu Yi saves Jin Xia from the pirates, he tells her she must be sure to repay him. Lu Yi is suspicious of the newfound relative, but he frees him. The poison maker destroys the poison ingredients. Lu Yi finds out the pirates' big boss is Mo Hai Feng. Meanwhile, Yang Yue and Shangguan get away from Dong Qisheng. Villagers use XieXiao and throw him into the evil dragon well. Lu Yi is able to save him from an otherwise fatal fall. (Source: kdramasinpajamas at MyDramaList)