Agaroth's Choice

This story tells the tale of a man named Agaroth born an outcast, into a place where the world never advanced from the medieval times. As he grows to a man, he seeks the secret to immortality, held by the kings of Torah. When he discovers a dark secret, kept in the dark for centuries, Agaroth has a choice, use it to bribe the kings for immortality, or keep the secret in the dark, and possibly be responsible for thousands of deaths. What would you do? Reading may, surprisingly, change your answer....