Annalice Mallory, the sheltered daughter of a family of map makers, discovers the cryptic diary of her long-dead ancestor that includes a map of a mysterious far-of island. Philip, Annalice's brother, sets sail for the island, lured by the promise of incomparable riches to be found. But when he doesn't return, Annalice sets out to find him - and the secrets of the diary - in a desperate journey that leads her through the worlds' most exciting outposts... and finally to the tropical islands of the South Seas, where she encounters heart-stopping peril, but also the promise of love.