Apollo Apollo is said to have built a foundation and an altar on Delos using the horns of the goats that his sister Artemis hunted. Since he learnt the art of building when young, he later became "Archegetes", the founder of towns and god who guided men to build new cities. In his young years when Zeus had ignored him, Apollo spent his time herding cows. There, he was reared by Thriae, the bee nymphs, who trained him and enhanced his prophetic skills. During this time, Apollo also invented the lyre, and along with Artemis, the art of archery. He then
The Trials of Apollo own robots. They then navigate the maze with the help of Piper McLean and Jason Grace and find defeat Medea, the sorceress who was working with the emperor. Around this time Caligula (the emperor) kills Jason Grace. The next day, Grover, Meg and Apollo using Caligula's shoes walk the Labyrinth. They free Herophile and discover a new prophecy: “Apollo faces death in Tarquin’s tomb unless the doorway to the soundless god is opened by...”. They also discover that they need help from ‘Bellona’s daughter’, Reyna, the praetor of camp Jupiter. "The Tyrant's Tomb" is the fourth book in the series.