Jacob has paid a high price for saving his brother's life: soon the moth on his breast, a sign of the fairies' curse, will unfasten herself to fly back to her mistress, and Jacob will be condemned to death. A race against time begins, as he embarks on a hunt for a dead king's head and his magical weapon, which may be his only hope. Once again Jacob joins forces with the beautiful shape-shifter Fox, who makes him realize that he may be fighting for more than his life...