Jing Tianming learns about the Hundreds of Schools of Thought and the 300 year conflict between the Mohists and the Gonshu Clan both famous for their mechanisms. A giant bird attacks their mechanical bird and Master Ban receives a poisonous wound. They are then attacked by flocks of birds controlled by White Phoenix/Baifeng of the Quicksand clan. Yue-er pilots the mechanical bird for Master Ban and they manage to escape into The Mohist mountain city. Tianming learn all about the legends of the place and the Mohist philosophies. Back in Xianyang Palace Prime Minister Li Si tell the Emperor about the difficulty of attacking the Mohist stronghold.
众人虽然逃脱了赤练的攻击，可是在飞行的途中，却遭到流沙四天王之首白凤凰的袭击。他召唤带有毒的鸟群对盖聂一行人攻击。班大师因受毒鸟袭击无法操作机关朱雀，只得指示高月操纵机关朱雀躲开鸟群攻击。没想到开启加速的机关朱雀还是不能避开鸟群的追击。关键时刻，班老头利用机关朱雀，击退了鸟群。众人终于进入墨家机关城……
