In countless fantasy stories, there are heroes who gain fame and glory by slaying monsters. Saint George slew a dragon, Beowulf slew the monster Grendel, and Hercules slew the Nemean lion. I am thinking of having the main character in my fantasy book have a similar experience. However, the creature he will slay will not be some mythical monster. Instead, I am thinking of him slaying a large predatory animal such as a wolf, lion, bear, or any other predatory creature you can find in the real world. He will only be fifteen years old at the time.