A little princess, Kia, ran with her mother as the ships attacked her home island of Atlantis.
Like all Atlanteans, Kia had white hair and brown skin. She had blue-colored tattoos and large blue eyes. She also wears a shard of the crystal around her neck. She wore only a simple blue bikini, the top being a strapless bandeau and the bottoms were covered with sarong type skirt and she went around barefoot.
She watched her mother, Katsumi, kiss a man wearing strange clothing and help him onto one of their Kateks.
"I love you Bobby Singer. Thank you for everything. I will tell our daughter about your bravery." Katsumi whispered, and handed him a crystal amulet. "Hurry. The spell will wear off soon. You must return to your time."
Kia looked up and saw a man in a trenchcoat smiling kindly at her from the Katek. He gave her an awkward wave.
Suddenly, the amulet on her mother's neck glowed. The amulet lifted into the air, and Katsumi turned toward the crystal in the sky.
"Katsumi!" Bobby cried. "Come back! Come with us! Bring Kia!"
"Pateh?" Kia looked at Bobby, confused.
The trenchcoat man put a hand on his shoulder. "There isn't time. The crystal has chosen her to save Atlantis. I promise you I will watch over your family. But we must return you to your time. You don't belong here, and you must not be drawn into the abyss."
"That sure isn't good enough, Castiel!" Bobby said.
So his name was Castiel. Kia looked at the angel with intelligent eyes, and then watched as her mother lost her grip on her hand, taking her bracelet.
"Matep. MATEP!" Kia shouted, chasing Katsumi as she was lifted into the crystal above.
There was a bright light as the crystal created a barrier around the city.
Kia stared up at the crystal, calling for her mother louder in desperation.
The island sank to the bottom of the sea, and as the barrier flickered away, the amulets around the neck of each citizen glowed, and they suddenly had the tails of mermaids.