For over two decades, Vincent of Greenhills resisted the pull of his own innate talent. He concealed the mark of his birth, and travelled to the remote ends of the world to remain unnoticed and unremarked.

But when his young daughter inherits a similar curse, she proves far less adept at hiding her powers. And they both pay a price for her desire to do good.

With little left to lose and vengence left to gain, how much of his soul, both figuratively and literally, will he spend?