Shen Zhiyao offended the emperor and was demoted to the border as a humble maid. She cleaned stables and washed bloody clothes every day, but played the remaining music in the dark night, awakening the secret sound of the silent beacon fire. Xiao Huaice went from contempt to secret protection, Liu Rushuang used a poison trick to deliver a secret message, He Lianchi led the dead soldiers of the alien race to lurk in the snowy fields, and Aunt Zhou used needlework to weave a map of the secrets of heaven - when the mountains and rivers in the three thousand miles were at war, she ignited the rebellion of nine tribes with a song "Broken Mountains and Rivers", and the real secret of the royal family has just been revealed.
