From Gavin Thurston, the award-winning Blue Planet II & Planet Earth II cameraman with a foreword by Sir David Attenborough comes
...Emma teeters on the edge of becoming fully demon, & must make a journey to the Kunlun Mountains in the West, home of the palaces of Nu Wa & the Yellow Emperor, in an attempt to regain her humanity. Travelling with Emma is Xuan Wus daughter, Simone, who is struggling with her growing powers & trying to defend herself from the demons who want to destroy her. & Michael is trying to come to terms with the shock of finding out he might be half demon.