Little Eagle and the Sacred Waterfall

Little Eagle is about to go through the ritual of the Rites of Manhood where he must leave the tribe armed with only his bow and arrow and not only survive but return when the sun has risen seven times armed with proof that he is worthy of being a warrior. His journey will take him to Black Mountain where he will find a cave that will take him deep into the bowls of the mountain. There he will encounter terrors of another time and a distant world. Having completed his journey and safely returning home he feels invincible and decides to violate tribal laws and venture into the Sacred Waterfalls. There he suddenly finds himself in a land where no living person has ever been. A land with no escape. It is a place where children go to their afterlife where water is not wet and fish birds and animals communicate and participate in gems with the children. A land where time does not exist. Is Little Eagle stuck here for the rest of his life?