A Silent River

She toils tirelessly for her master, the Divine Magician, despite being born into slavery as little more than a Subhuman, unable of speaking, reading, or writing, and forbidden from receiving such education.
Then, one day, as Silent Eden is attempting to continue her difficult task, she makes a discovery that might alter how she perceives the entire universe.
Since the passing of his mother, Zanthius has been living alone. He understands as an islander that the land he lives on is sacrosanct and that no people from the mainland are permitted to enter the island. He is unsure of what to do when he discovers the weird girl in the Island's ruins. She is completely silent and doesn't speak the language!
Zanthius' obligations to his people are to discover her origins and to send her home. Is it worthwhile, though?