For centuries, the firstborn of the royal family have voluntarily given their lives for the sake of the existence of a kingdom surrounded by desert. And again the hour has come when they prepare for the sacrifice in the temple by the lake. The procession goes to the monastery, but, as soon as it leaves the capital, it falls into a trap. The princess, having miraculously avoided premature death, is forced to look for a new way to perform the ritual. Is Adaline worthy of living, will she want to escape, and what will she do with the fate of an entire people? In search of an answer, she will have to go a long way, full of dangers and secrets hidden for centuries, and in a series of betrayals, her only salvation will be a person who does not believe in ritual and sacrifices made in the name of the common good.