The Princess sprang away with the fleetness of a gazelle, and the Prince was left alone.

“I wish I could go to meet him sword in hand,” he muttered between his clinched teeth.  “I understand their game.  They would have poisoned me and carried off my sister, so that she would have been forced to marry him, and then by means of the Emperor she would have been declared heiress of the Electoral Mark of Brandenburg.  Ah!  I penetrate their designs, and they shall not succeed.  Their poison proved inefficacious, and so shall their love!  Now away to the door through which the fine gallant was to have entered.  He will find it locked, and I shall keep guard before it the livelong night.”

The Prince left his own apartments, and hurried down a private staircase and through dark passages to the door designated.  It was only on latch, but a key was in the lock.  Quickly he locked the door, and then stood listening intently.  It struck ten o’clock, and as the last stroke vibrated in his ear a hand was laid upon the door latch outside, and a manly voice whispered:  “Trude, open!  It is I. The one whom you expect!  Open, quick!”

“Were it hell,” murmured the Prince softly to himself, “yes, were it hell, I would open the door.  But there is no admittance to paradise for you.  Knock on, knock on!  The gates of the Electoral mansion are not undone for you.  Knock on; the castle of the Elector of Brandenburg is locked against you, and you must stand without, you Counts of Schwarzenberg, for you shall not thrust me out of the palace of my fathers!  I shall be Elector of Brandenburg in spite of you, and then, Count Schwarzenberg, Stadtholder in the Mark, then be on your guard!  I shall remember, Count Adolphus Schwarzenberg, that your finger rapped at this door, threatening to bring shame and disgrace upon this house!  And then, perhaps, I may open a door for you, and allow you to enter, but it will not be for a lover’s rendezvous, and the door which admits you will not so easily grant you an escape.  Now I suffer and endure, but a time of reckoning will come!  Schwarzenbergs, beware of me!”

For a long while yet the Electoral Prince stood within the door, and for a long while yet, at intervals, the knocking on the outside was repeated.  Then all was still.  Frederick William returned to his own apartments.

Early next morning took place the departure of the Electoral family for Prussia.  It was to be wholly without formality, and consequently no one had been notified.  The Elector had only caused the two Counts Schwarzenberg to be summoned after the carriages were ready, and when they came in haste they found the Electoral family just on the point of entering their several equipages.

“I meant to set out secretly,” said George William, stretching out both hands to the Stadtholder, “in order to spare myself the pain of bidding you farewell, Adam.  But now I find that my heart is stronger than my will, and I must embrace you once more before I go!”