"Red Pyramid" is the first book in the Kane Chronicles series by Rick Riordan. It follows siblings Carter and Sadie Kane as they discover their connection to ancient Egyptian magic and their family's legacy. The story begins when they accidentally unleash the Egyptian god Set, leading to a quest to save their father and prevent chaos. The narrative is presented in a unique format, alternating between the perspectives of Carter and Sadie. Throughout their journey, they encounter various mythological creatures and gods, learning about their heritage and the importance of teamwork. The book blends adventure, humor, and mythology, appealing to young readers.