The girl that appeared out of the tianshu bamboo writing strip is Yun, a doll made using Mujia.
Yun calls the sword that appeared out of the tianshu the legendary Xuan Yuan Sword. Through Yun, Yin and Ning acquire new power.
Meanwhile, with a single word from Empress Cheng, Zhao is made chief engineer. He now works on developing constructs.
Mo Heng, who betrayed the empire and joined the rebel army, is also working on a new weapon he calls black fire armor.
No. I saw the plans 
Chief Engineer Mo Heng drew.
كلا، رأيتُ المخطّطات التي رسمها
كبير المهندسين بوكو
Nein. Ich habe die Pläne
vom obersten Ingenieur Mo Heng gesehen.
No. Vi los planos
del ingeniero jefe Mo Heng.
No. Vi los planos
del ingeniero jefe Mo Heng.
No. Ho visto i progetti dell'Ingegnere Capo Mo Heng.
Não. Eu vi os esquemas que o
Chefe Engenheiro Mo Heng fez.
Нет. Я увидел чертежи главного
инженера Мо Хена.