Lucinda lived like a princess on her father's private island off the coast of California, Isla del Oro. But she was really a prisoner, shut off from the world, never allowed off the island. Then Christopher Dawson, a young archeologist, came to the island and into her life. And Lucinda began to realize the horrifying truth about the island . . . and about her father.
Used availability for Scott O'Dell's The Spanish Smile
October 1982 : USA Hardback
December 1983 : USA Mass Market Paperback