Synopsis：At the moment of the nine-star conjunction, 沈万九海墓 rises with the island, drawing the covetous attention of all factions. To investigate the adulteration of disaster-relief grain, the jianghu chivalrous thief 天涯 secretly searches the granary at night, but is entrapped and dragged into the conflict. He then allies with 郑浅浅, the leader of the 天海船帮 who has been searching for her missing father, and 沈朝闻, a descendant of the Shen family. Together they head to 烛龙岭 to seize 龙须, the key that unlocks the sea tomb. Aboard the 萤火号, they brave the ghost-ship mists and 鲸口滩, finally opening the sea tomb and revealing the Shen family treasure—番天印. But all of this was a scheme devised by 沈朝闻 to claim the power of 番天印. As the truth comes to light, the group falls apart, and a battle between good and evil erupts within the sea tomb.