As Zero Time nears, only Keihla Benton can save two worlds from the powers of Darkness. But first she must unlock the secrets of Machu Picchu and her own past.
Xmucane leads an expedition to Earth to overcome a genetic flaw that threatens the people of Omeyocan with extinction, but she soon finds herself involved in a very personal battle that pits mother against daughter and sister against sister. With the help of the time-traveling Great Serpent Quetzalcoatl, she leaves the Southern Temples to arrive in present-day Machu Picchu as the expedition's time-window closes.
When Philadelphia science writer Keihla Benton joins an archeological team at Machu Picchu, she learns the Andean prophesies about 2012 have special meaning for her. Only she can end the cycle of Darkness that endangers Earth at the end of the Mayan calendar. As she uncovers secrets from the past, which threaten her life and those she loves, Keihla struggles to keep the powerful Great Crystal from the Lord of Darkness and his consort.
Xmucane and Keihla work together as Earth and Omeyocan near alignment with the galaxy's dark heart for the first time in 26,000 years. They must seize the last chance to restore the cycle of Light to Earth and return to the Pleiades with a cure, no matter what the cost to their hearts.