past him, and by morning he was in realm under the waves.
"You are come," said the prince.
"I am," said he.
"That's true," said Prince Underwaves. "A king's son are you, but a son of success am I. We shall have no more mistakes and delays, but a wedding this time."
"Go easy," said the Princess of the Greeks. "Your wedding is not so near as you think yet. Till you make a castle, I won't marry you. Not to your father's castle nor to your mother's will I go to dwell; but make me a castle for which your father's castle will not make washing water."
"You, rider of the black horse, make that," said Prince Underwaves, "before the morrow's sun rises."
The lad went out to the horse and leaned his elbow on his neck and sighed, thinking that this castle never could be made for ever.
"There never came a turn in my road yet that is easier for me to pass than this," said the black horse.
Glance that the lad gave from him he saw all that there were, and ever so many wrights and stone masons at work, and the castle was ready before the sun rose.
He shouted at the Prince Underwaves, and he saw the castle. He tried to pluck out his eye, thinking that it was a false sight.
"Son of King Underwaves," said the rider of the black horse, "don't think that you have a false sight; this is a true sight."
"That's true," said the prince. "You are a son of success, but I am a son of success too. There will be no more mistakes and delays, but a wedding now."