Yang Xuan, a descendant of the Faqiu Heavenly Official, is invited by the Nationalist Government's Institute for Cultural Relics Research, Seventh Action Group, to investigate a mysterious bronze sacred tree unearthed at Sanxingdui. It brings to mind the tomb of the ancient Shu king, and so he journeys to Black Bamboo Valley to explore the ancient Shu king's divine palace and uncover the secret of the sacred tree that has already achieved immortality there!
