The Cthicxians were a race of humans seeded upon an unknown world by a enity known as the Lord.
The Cthicians were a group of humans that the Lord kept as reserves for the day he needed to replenish his power after enslaving the Defiled. He sent his followers to convert them to his faith. After briefly battling against them the Cthicxians having no spiritual beliefs or god of their own relented if they agreed to bring the Lord's power to their enemies. The captain of the force accepted and a priest was brought to invoke the Lord who manifested and began devouring them for their souls.
- The God Engines by John Scalzi (2009)