The First Book in Bestselling Author Kylie Chan's Thrilling Celestial Battle Trilogy When the ancestry of Xuan Wu's fiancee, Emma, is revealed, it threatens the harmony of the whole Celestial realm. The demons are gathering, powerful alliances are being made and stone Shen are under threat. However, Xuan Wu is distracted--he must save Emma from the Demon King and give her the elixir of immortality, but at what cost?