From birth, Alain and Alina Alastair are a scientific miracle–identical male-female twins–a biological impossibility. Destined to tread the farther, forbidden paths, they discover love, lust, and danger lurking in their future. When their parents whisk their miracle children home to an isolated island, their lives reach a turning point. Alain craves escape from the seclusion. Alina yearns to express her love with a man who treasures her. The secrets at Alastair Keep threaten to undermine the very foundations of the world in which these impossible twins live.