"And why shouldn't a prisoner escape--if he can?" she asked, after a moment's hesitation. "You'll never have a better opportunity to rejoin your command. You are not under parole, and you are under no obligations to my brother. You have only to mount your horse, beckon to your negro, and follow the path you will find at the back of the house. It leads by a grist-mill. A part of your command has already passed on the road beyond the mill, but if you will go now you will fall in with the rear-guard."