He lost his parents at the age of eight by poison and since then on the flight together with his older sister Shira Schattenklaue. She educated him and proclaimed him her substitute as she took over the leadership of the Order of shadow blades.
He meet often with Asasel Rotschweif to gather informations about Teho Grauschweif and became good Friends. When Teho was overthrown Asasel proclaimed Scath as the General of the Vuljath army.
At the age of 65 he set sails to explore the oceans. The ship was wrecked in a storm and Athreus ran ashore an unknown island. He stayed on that island for 15 years until his son found him.
