Here are some key things to remember about Nancy:
* She's a bully: Nancy enjoys tormenting others, especially Percy Jackson, often using her strength to intimidate and hurt him.
* She's powerful: As a child of Ares, Nancy is physically strong and skilled in combat.
* She's a Camp Half-Blood camper: She resides at the camp for demigods, training to control her powers.
* She's a daughter of Ares: This explains her aggressive and violent tendencies.
Nancy's presence in *The Lightning Thief* serves as a foil to Percy's character, highlighting his kindness and compassion in contrast to her cruelty. She also contributes to the conflict and danger that Percy faces throughout the story.