The death of old Liu and the other two was indeed a turning point that brought her back to 800 years ago, when she met miss Zhang.
According to 'him', for every person who died in the caravan, she would have a chance to return to 800 years ago.
And every time she returned to the past, the sealed Power in her body would be restored.
If she killed all the people in the caravan, she would obtain several opportunities and return to the past, allowing her to completely recover her strength.
However, there was something strange about this.
First of all,'he' was eager to make song qingxiao return to the past and reverse the universe, as if he wanted to change something. This kind of thing might be related to 'him'.
Secondly, according to song qingxiao's speculation,'his' existence might be related to the child that Zhang xiaoning had given birth to.
"Demon fetus ... The heavenly Dao temple ..."