Shhuusshuru, also known as Shadow Wing, was sired sometime before the founding of Cormyr in 26 DR by the shadow dragon Shadraxil. She gave birth to now-leader of the Cult of the Dragon, Aurgloroasa, before expelling her daughter from her realm after two centuries. She preceded the Sibilant Shade's ascension to dracolichdom with the help of a nascent cult cell in Berdusk. Originally, this was just to gain more power in the Western Heartlands but eventually she took over leadership of the cell. She still holds a loose alliance with her daughter's cell in Sembia