Muses

The Muses were daughters of Zeus, the second generation king of the gods, and the offspring of Mnemosyne, goddess of memory.

History
The Muses judged a contest between Apollo and Marsyas. They also gathered the pieces of the dead body of Orpheus, son of Calliope, and buried them. They blinded Thamyris for his hubris in challenging them to a contest.

There are nine Muses.


 * 1) Calliope
 * 2) Clio
 * 3) Erato
 * 4) Euterpe
 * 5) Melpomene
 * 6) Polyhymnia
 * 7) Terpsichore
 * 8) Thalia
 * 9) Urania

The series
The Muses played at the celebration at the end of The Titan's Curse, and tried to stop the invasion of Olympus at the end of The Last Olympian. They do not exactly play major rules in the series.