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The Olympos Project was a scientific exercise by the Isu to develop a series of hybrid beasts powered by purpose-built Precursor relics: the Atlantis artifacts. The Project was largely successful, with its creations long outlasting the Isu themselves and becoming legends in Greek culture.
Aletheia, a member of the Isu, documented her knowledge of the project in her messages located in a vault connected to Atlantis. These messages were later reviewed by Pythagoras and his daughter Kassandra during the 5th century BCE.