Hayley Foss

Hayley is a young girl who has lived a very sheltered life under the rule of her strict grandmother. Hayley is the daughter of Merope (one of the astronomical seven sisters) and Sisyphus (Cyrus Foss) a former king of ancient Greece. It is prophesized that she has the power to stop her cruel, power-hungry uncle Jolyon from his dictatorship over the rest of the family. She turns him into the planet Jupiter and frees the family from his tyranny. Hayley's name is a reference to Halley's Comet.

Harmony

Harmony is Hayley's cousin and Troy's sister. She is college-aged and initially Hayley mistook her for one of the aunts. Harmony is in charge of the game and is the most skilled of the cousins at traversing the mythosphere. In Greek mythology Harmonia (Harmony) is the daughter of Jupiter (Uncle Jolyon) and Electra.

Troy

Troy is Hayley's eldest male...