Unknown to the girls, the spirit had taken notice of their play.  The spirit was remembering how she used to bind her female victims with their own expensive silk scarves.  She loved how the colorful scarves kept the helpless women quietly subdued.  The women would squirm and moan through their silken gags.  This only excited the female robber more.  Now the spirit watched and imagined these two beautiful women bound in expensive silk scarves...