An Ice dragon, but she was adopted into Water at a young age and grew up there. She loved the ocean and was always swimming and splashing around.
Then, during the Tidelord's festival, she was out swimming when a storm hit. She was with a friend and she risked her life to save the other dragon. She disappeared beneath the waves and they all thought she died.
But then, she washed up near the putrid waters bordering the Plaguelands. She was barely alive but she made it to the nearest clan to ask for help.
The hardened warrior clan didn't often take Water dragon seriously, but they were impressed by her survival. They nursed her back to health. Annabelle had been planning to return to her old clan when she was well enough, but she had fallen in love with Theodore. So she decided to remain, and has been with the clan ever since.