Caledon Holt is the trusted assassin of Queen Lilianna. He is bound to the Queen by a blood vow, the vow will be fulfilled when he finds the missing Deian Scrolls and returns them to the Queen. If he is unable to complete the mission before he dies, then the blood vow will carry over to his children. The Deian Scrolls are important to the Renovian Kingdom as they contain magical history and knowledge. As Cal is searching for the Scrolls, he finds himself in many difficult situations, and realizes that he must take on an apprentice.