Flint is asked to guide Mike Kelly, John Miller, and Dutch Carl Anders to Haunted Mountain where Mike's father Jerald disappeared. John Miller's brother was found dead at the base of the mountain with an Aztec knife in his hand. Flint is surprised by Lia who says she is a Princess. If her father okays it, she will return to lead the group to him. She returns waking Flint telling him she will lead them to her village in the mountain. She leads them on horseback up the mountain and through a tunnel to a walled city containing the descendants of the Aztecs and Montezuma who escaped Cortez. The village is ruled by Montezuma IX living frozen in time. Flint falls in love with Lia who talks to Flint about it being her eighteenth year. Montezuma delays answering Mike Kelly's question about his father but eventually Jerald Kelly tells Flint he wishes to stay there and his son is not to know he is alive. Flint prepares to leave asking Lia to go with him to be his bride only to find she is ...