Ten years after Kiritsugu Emiya summoned a Servant that should have been out of reach, the First Hassan-i-Sabbah, the original Old Man of the Mountain, the Fifth Holy Grail War has begun. Shirou Emiya, Master to an Assassin whose very existence threatens to tear him apart, must finish what his father began- and the First Hassan is not the only impossibility that stalks Fuyuki City.

He was a hopeless man, a man who would amount to a little more than a fool. Yet this man pursued an endless dream, a dream in which he could hold her again... (A Shirou medieval Britain Fic-beginning before Saber drew Caliburn)