 Cui, finding this out, invited Zhu to bring troops to Chang'an to kill the eunuchs, and when the eunuchs found out, they, who were by this point allied with Li Maozhen, in turn seized Emperor Zhaozong and forced him to flee to Fengxiang.Zhu quickly arrived at Chang'an and then headed to Fengxiang, putting it under siege.Li Maozhen sought aid from Li Keyong.