Snow has been falling on the Caribbean island of St. Michael for years, diminishing plant and animal life and leading to extinction. But underneath the island's ocean lies Surritz--a tropical, magical realm where water dragons known as Wayters have discovered their power of reason.

After being hypnotized, fifteen-year-old Stasia Forrester meets Billy, a Wayter that makes her realize she has the ability to reverse global cooling. But Stasia has something that Billy wants, and to get it, Stasia must travel back in time. She soon discovers that her connection to Surritz is more complicated than she could have ever imagined. When love starts to guide her conscience, she faces tough choices.

How will her decisions affect global cooling if her needs are more important to her than saving humanity? Does she trust that Billy is telling her the truth? If so, she may lose the only true love she has ever known.