“Can we not take Mr. Custer with us?” she asked.  “Prince Peter may disregard your majesty’s commands and, after you are gone, have him shot.  Do not forget that he kept the crown from Peter of Blentz—­it is certain that Prince Peter will never forget it.”

“I give you my word, your highness, that I know positively that if I leave Blentz tonight Prince Peter will not have Mr. Custer shot in the morning, and it will so greatly jeopardize his own plans if we attempt to release the prisoner that in all probability we ourselves will be unable to escape.”

She looked at him thoughtfully for a moment.

“You give me your word that he will be safe?” she asked.

“My royal word,” he replied.

“Very well, let us leave at once.”

Barney touched the bell once more, and presently an officer of the Blentz faction answered the summons.  As the man closed the door and approached, saluting, Barney stepped close to him.

“We are leaving for Tann tonight,” he said, “at once.  You will conduct us from the castle and procure horses for us.  All the time I shall walk at your elbow, and in my hand I shall carry this,” and he displayed the king’s revolver.  “At the first indication of defection upon your part I shall kill you.  Do you perfectly understand me?”

“But, your majesty,” exclaimed the officer, “why is it necessary that you leave thus surreptitiously?  May not the king go and come in his own kingdom as he desires?  Let me announce your wishes to Prince Peter that he may furnish you with a proper escort.  Doubtless he will wish to accompany you himself, sire.”

“You will do precisely what I say without further comment,” snapped Barney.  “Now get a—­” He had been about to say:  “Now get a move on you,” when it occurred to him that this was not precisely the sort of language that kings were supposed to use to their inferiors.  So he changed it.  “Now get a couple of horses for her highness and myself, as well as your own, for you will accompany us to Tann.”

The officer looked at the weapon in the king’s hand.  He measured the distance between himself and the king.  He well knew the reputed cowardice of Leopold.  Could he make the leap and strike up the king’s hand before the timorous monarch found even the courage of the cornered rat to fire at him?  Then his eyes sought the face of the king, searching for the signs of nervous terror that would make his conquest an easy one; but what he saw in the eyes that bored straight into his brought his own to the floor at the king’s feet.

What new force animated Leopold of Lutha?  Those were not the eyes of a coward.  No fear was reflected in their steely glitter.  The officer mumbled an apology, saluted, and turned toward the door.  At his elbow walked the impostor; a cavalry cape that had belonged to the king now covered his shoulders and hid the weapon that pressed its hard warning now and again into the short-ribs of the Blentz officer.  Just behind the American came the Princess Emma von der Tann.