Karen Acacia Bannister was introduced at the end of Bones of Makaidos, where, as a newborn, she surprises her parents with her hot breath. Her twin brother is Charles Bannister. Their parents are Bonnie and Billy Bannister. Karen was named after Karen, Billy's adopted sister, and her middle name after Billy and Bonnie's good Oracle friend, Acacia, that died when the dragon slayer Devin tryed to kill Billy and Acacia jumped in the way . She is one of the main characters in The Song of the Ovulum. She is introduced as Lauren in Song of the Ovulum for when she was less than a year old she was taken away from her parents and seperated from her twin brother. her dragon traits allow her to hear things so well sometimes she can hear people's thoughts. She also has a trait that she got from Shacha