1x34 - The Long Ballad

A plague is spreading in the Eagle Army and the Great Shaman claims that it is a curse to the Eagle Army. Ya Luo is sent to bring Ashina Sun back to the Eagle Army to deal with the curse. Chang Ge decided to tag along and she tells Elder Qin to send someone to bring Master Sun who has left to the grassland. Upon checking, Master Sun concludes that claiming the plague is a curse is sheer nonsense. Now, they need to get purple gromwell to produce the cure.