not catch it. But the horse never stopped nor looked behind,
till in the dark of the night he reached the castle of the king of the
oak windows.

'We are at the end of the journey,' said the horse, 'and you will find
the Sword of Light in the king's own chamber. If it comes to you without
scrape or sound, the token is a good one. At this hour the king is
eating his supper, and the room is empty, so none will see you. The
sword has a knob at the end, and take heed that when you grasp it, you
draw it softly out of its sheath. Now go! I will be under the window.'

Stealthily the young man crept along the passage, pausing now and then
to make sure that no man was following him, and entered the king's
chamber. A strange white line of light told him where the sword was, and
crossing the room on tiptoe, he seized the knob, and drew it slowly out
of the sheath. The king could hardly breathe with excitement lest it
should make some noise, and bring all the people in the castle running
to see what was the matter. But the sword slid swiftly and silently
along the case till only the point was left touching it. Then a low
sound was heard, as of the edge of a knife touching a silver plate, and
the king was so startled that he nearly dropped the knob.

'Quick! quick!' cried the horse, and the king scrambled hastily through
the small window, and leapt into the saddle.

'He has heard and he will follow,' said the horse; 'but we have a good
start,' And on they sped, on and on, leaving the winds behind them.

At length the horse slackened its pace. 'Look and see who is behind
you,' it said; and the young man looked.

'I see a swarm of brown horses racing madly after us,' he answered.

'We are swifter than those,' said the horse, and flew on again.

'Look again, O king! Is anyone coming now?'

'A swarm of black horses, and one has a white face, and on that horse a
man is seated. He is the king of the oak windows.'

'That is my brother, and swifter still than I,' said the horse, 'and he
will fly past me with a rush. Then you must have your sword ready, and
take off the head of the man who sits on him, as he turns and looks at
you. And there is no sword in the world that will cut off his head, save
only that one.'

'I will do it,' replied the king; and he listened with all his might,
till he judged that the white-faced horse was close to him. Then he sat
up very straight and made ready.

The next moment there was a rushing nois