Born in America, Celesta is a very smart kid and has high marks in school. She is a natural born leader and have deadly aim. Her mother is a doctor and always moves to attend to hospitals that needs help. Her parents met in a rescue operation. After their mission. Apollo asked her mother out. A year after Celesta was born, Apollo suddenly appeared in Zinta's apartment. Zinta was furious. Apollo tried to calm her down but Zinta wouldn't listen. With no other option, Apollo told her the truth 'I'm a God. An Olympian,' he said 'I didn't told you to protect you. I'm so sorry.' Zinta suddenly bursted into tears. Apollo hugged his wife. He stayed to live with Zinta for a month. However, he has something to attend to. He apologised for leaving but he told her he had no choice. As a parting gift, Apollo gave Zinta a Celestial Bronze knife for her and a Celestial Bronze watch for their daughter. Apollo told his wife to keep the watch until the time is right, and give it to their child. 'Bring her to Camp Half Blood' he said and left. To remember her husband, Celesta's mother took her daughter to work every once in a while. Celesta learnt a lot of healing skills there.
One day, a large dog (which she later knew as a hellhound) appeared out of nowhere. Celesta panicked. Her mother tossed her a watch. She caught it and it instantly expanded into a bow and quiver where ten gold shiny arrows lay. Although she never tried archery before, but like magic, she understands how to hold, draw and shoot. She shoot the monster and it simply disappeared. Miraculously, her arrow reappeared in her quiver. Her mother tried to explain when a satyr appeared. It promised to explain everything when they arrive at camp. Celesta's mother told her daughter to keep the gift from her dad. She bid her goodbye and promised to return.
When she arrived at CHB, Apollo showed up to claim her. She was shocked and angry. 'So YOU are my father! Now you DARE to show up after all these years? Mother always cries secretly because of YOU!' Celesta yelled. 'Wow wow wow,' Apollo said with a smile 'you are brave aren't you! Kid, I'm loving you more and more now.' He chuckled. 'Kid, will you accept my offer to be my priestess?' Celesta went very red. 'What's a priestess?' 'Oh so you know that I need to contact camp once in a while? My priest helps me do that. My recent priest 'retired' so I need a new one. Will you accept my offer?' Apollo answered. Celesta was confused. Apollo gave her time to think. 'I don't think so yet... I still have a lot to think about.' Apollo smiled. 'Tell me when you're ready, 'Kay?' In a flash of light, the god disappeared.
One day, the Hunters of Artemis arrived at camp. In a game of Capture the Flag, Celesta witnessed the skills of the hunters. She was overwhelmed. After the game, she talked to Thalia, the leader. 'How can I be a hunter like you?' 'You say an oath. If Artemis accepts, you join.' Thalia smiled. 'She's coming tomorrow to take us away.'
The next day, Artemis arrived. Celesta rushed to the goddess. 'Can I join the Hunt?' Artemis smiled. 'Just say an oath so I can accept you! It goes like this...' After Artemis accepts, she threw a ball of energy to Celesta. Celesta groaned when the ball hit her. She instantly felt a surge of energy rush through her body. 'Welcome to the Hunt' Artemis said.