The sun rose brightly over Camp Half-Blood, and Percy Jackson blinked in the morning light. He was still getting used to being a demigod, but that morning was special. As he walked by the training grounds, a girl with curly hair and a fiery spirit caught his eye. "Who are you?" she called out, her brown eyes sparkling with mischief. "I'm Kaia, daughter of Ares! Ready for a challenge?" Percy grinned, feeling a spark of excitement. 'Challenge accepted!' he replied, ready for anything she would throw at him.