

Before they leave, Leo discovers Bunker 9 after repairing the bronze dragon that he names Festus. Years later, Leo discovers he is a demigod and is sent on a quest to rescue Hera, Queen of the Gods. The original Jason was killed when its mast, built from a tree of the Grove of Dodona, fell on him and crushed him. The ship was named after its builder, Argus.
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The Argo is the original ship of Jason and the Argonauts, on which they sailed on their quest for the Golden Fleece. Leo, however, lost the drawing in the wind though it was much later returned to him by Aeolus, the master of the wind. The ship was decorated with flames and its masthead was the head of the metal dragon, Festus. When he was five years old, he drew a picture of a flying ship with crayons. Decades later, Leo Valdez had a dream about the Argo II, made out of flames, when he was two, while he was still under the care of Tía Callida. The creator never made the ship and eventually the bunker was abandoned. Flight?" While the designer was never known, the name of the blueprints led to revealing the name of the ship- Argo II. An unknown camper designed blueprints for a flying ship that may have been related to a prophecy, as there is a note stating "Prophecy? Unclear. During the Demigod Civil War, Bunker 9 was used as a command post for the Hephaestus' Cabin.
