A shady old woman who draws power from the wild.
Ylva used to lead the East Residential gang of Gerelli. She lived in secrecy. Gang members referred to her as "the Boss," but it was difficult to find one who had actually met her or knew anything about her. One has to wonder how she gave directions.
Her gang was destroyed when open war broke out with the West Residential gang. She was planning to disband it anyway. She hopes to earn a position in the Organization.
She has stated that she is a Druid who has learned to draw power from the Gwyll. She says that she will profit as the Gwyll will profit. She can feel the location of the keys to the Tower in the East.