What new information does Percy learn about his dad while toasting marshmallows?

While toasting marshmallows, Percy learns that his father, Poseidon, is not just a distant figure but a powerful god who is deeply connected to the sea. This moment of reflection reveals the complexity of their relationship, highlighting the challenges Percy faces as a demigod. It also emphasizes the importance of understanding his heritage and the responsibilities that come with it. Overall, this experience deepens Percy's sense of identity and his connection to the world of gods and monsters.