Some people are destined from birth to do great things. Gil Orlov is born in the shadow of totality of a solar eclipse, the seventh daughter of a seventh daughter. She is the culmination of a carefully planned genealogy begun by her great-grandmother. Gil's purpose, the goal of her family-defeating a Vision of the world in flames, reduced to a lifeless cinder. But the power she should have is muted or lacking. Gil and her six sisters begin an arduous journey to a place of power high in the Peruvian Andes known as Killichaka - the Bridge to the Moon. They must make it to this ancient temple in time to complete a ritual during the totality of the 1937 solar eclipse. If they are successful, Gil's powers should be restored-giving her the ability to prevent the global disaster her ancestors warned of. To succeed they must first survive the journey and locate Killichaka. Against them is the environment, the elements, their own doubts and fears as well as the 'Other' and a force that would gleefully see the world fall into chaos-an entity known as Supay.