Here's why:
* Mythology: The series heavily incorporates Greek mythology, featuring gods, monsters, and locations from the ancient Greek world.
* Supernatural Elements: Percy and his friends possess magical abilities and encounter supernatural beings.
* Adventure and Action: The books are full of thrilling quests, battles, and dangerous situations.
* Coming-of-Age Theme: The story explores themes of identity, belonging, and self-discovery as Percy navigates his new world.
* Target Audience: The series is written for young adults, with a focus on relatable characters and engaging plotlines.
While it includes fantasy elements, Percy Jackson is not strictly categorized as high fantasy. It's a blend of fantasy and contemporary elements, making it accessible to a wider audience.