31. Assuring the old Duke
"Only a person with the Supreme Blood can kill Castiel. Until then, he is immortal." Kieran divulged the secret only he knew about and Seymour looked at him in shock. He was unable to believe that his King's brother was immortal while his King was not. Although it was impossible to kill his King, making him immortal too, Seymour knew that there was a way that could kill him, which nobody but his King knew about. But with the King's brother, it was impossible to use those techniques. "Supreme Blood?" Seymour gave him a confused and Kieran nodded at him in return. "Yes, that was what the witches told me. Only a person who has the Supreme Blood running in them can kill him." Kieran sighed softly as he recalled the day when he had found out the truth about his brother's immortality. Altho
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