About the book: 2012 / Isaac, a blind doctor from Girona, goes to Perpignan for the wedding of his friend David’s son, and also to help treat Arnau Mars, knight and patient David, seriously wounded in the attack. But while Arnau is trying to find out who his enemy is, an innocent apprentice dies. Perhaps he was mistaken for David or even Isaac? Now Isaac's supernatural ability to distinguish between evil and good, and Arnau's desperate desire to survive become their only weapon capable of preventing an even greater tragedy.…