Discovering that she is the true heiress to the castle of Glen Clair puts orphaned Catriona in terrible danger. Knocked unconscious, she wakes to find herself bound, on a ship, in a dark cellar! As she comes to, she realizes she's not alone - Neil Sinclair, Master of Ross and heir to the Earl of Strathconan has been kidnapped also.
The King of Aristo is dead and the Rose Diamond is missing. Without the precious jewel, no heir can be crowned. The search for the princes begins. But the rival island of Calista, a Sheikhdom, wants the jewel. Two halves of the infamous whole will give them power. And whether by seduction, power, money or marriage, the jewel must be theirs.