Guiamo Durmius Stolo is an orphan whose uncle and aunt abandon him because of lack of money and food. A man named Calidius finds and raises him, and teaches him how to fish. Calidius soon learns of Guiamo's intelligence and creativity after Guiamo builds a trap for fish. Calidius sends Guiamo to his friend, Gabinius, to teach Guiamo furthermore. Gabinius teaches Guiamo hunting, letters, numbers, etc. Gabinius learns of a prophecy that connects with Guiamo and finds out that Guiamo is the son of Mars. He acquires Mars' original spear, Lúin.
