The wedding of Alix Madsen and Jared Montgomery is a glorious affair at an elegant little chapel in the woods, followed by dinner and dancing, all while moonlight blankets the festivities in a romantic glow. While most guests are fixed on the happy couple, Jared's cousin Graydon can't look away from a bridesmaid, Toby Wyndam. It's not just her quiet beauty that enthralls him or the way she makes him laugh. Toby possesses the truly remarkable ability of being able to distinguish Graydon from his identical twin brother, Rory. According to family legend, such a gift marks her as Graydon's True Love. But Graydon knows there is no possible way that they can ever be together, for he is heir to the Lanconian throne and is to marry a noble woman who has been chosen for him. Yet, intrigued by Toby, he asks her to help him hide on Nantucket for a week away from regal responsibilities. In exchange, he'll assist her with planning acclaimed novelist Victoria Madsen's lavish wedding. Since they both know their union is impossible, the pair promises that they will never be more than just friends. But there's more going on between Graydon and Toby than her unique power to tell him apart from his twin. At work are forces beyond their control, which are ruled by time itself. Combine that with the magical island of Nantucket, and a seductive spell is cast over Graydon and Toby. If they are to be together, they must change what once was, as well as what will be.