It changed immediately into a boat, into which the Princess stepped tremblingly; and it floated away over the blue water until the little Princess, straining her eyes eagerly, lost sight of her home, and the land faded away into a mere streak upon the horizon.

"I wonder when I shall meet the Sea-Troll and what he's like," thought Princess Sidigunda. "I suppose I shall be able to recognize him somehow."

As she thought this, she noticed that some object was rapidly floating towards her. It did not look like a boat, and as it came nearer and nearer, she could see that it was a large sh.e.l.l, on which an old man with a long beard was seated cross-legged, surrounded by a crowd of laughing Sea-children. They clung to the sides of the sh.e.l.l, swum round it, or climbed up to rest themselves on its crinkled edges.

"Who are you, and what are you doing here?" cried the old man in a gruff voice.

The Princess trembled; but she seized her veil and the little flask, and holding them out she repeated her G.o.dfather's message.

"I'll see what I can do, though really these children wear me out!"

said the Sea-Troll. "I can't keep my eye on all of them at once! You had better go down to the Sea-city, and ask if they've carried your shoe there. If not, the Troll-writers will tell you where it is. Show this to the city guard, and they will direct you to the Palace." He gave the Princess a flat sh.e.l.l on which some letters were engraved.

"Sink down at once," he continued; "you are over the city now," and with a wave of his hand he sailed away with the children, and was soon out of sight.

"I suppose there's nothing else to be done," sighed Sidigunda, and throwing the scarf over her head, she poured a few drops from the bottle upon her shoe.

"Turn into a fish and carry me down to the Sea-city!" she said.

In a moment she felt herself sinking through the clear water, deeper and deeper, with a delicious drowsy feeling that almost soothed her to sleep. She knew she was _not_ asleep though, for she could see the misty forms of sea creatures, darting about in the dim shadows, and great waving sea-weeds--crimson, yellow, and brown--floating up from the rippled sand beneath.

And now the shoe swum straight on, darting through the water like an eel; until a large town came in sight, with high walls and Palaces, and shining domes covered with mother-o'-pearl.

They stopped at a great gate, before which a fish dressed as a sentry was standing.

As soon as he saw the little Princess, he drew his sword, and came gliding towards her.

"Your name and business!" he enquired, in a high thin voice.

"I am Princess Sidigunda, seeking my golden shoe, and I bring this from the Sea-Troll," said the Princess courageously. "Will you tell me where I am to find the Trolls of the Palace?"

The fish handed the sh.e.l.l back sulkily, and pointed up the street.

"Go straight through till you come to the marble building with the pearls over the door," he said; and gave the Princess a poke with the handle of his sword, that pushed her through the gate, almost before she had time to draw on her golden shoe again.

"What a rude, ill-bred sentry!" said Sidigunda. "My father would be very angry if any of _our_ soldiers behaved so; but then, of course, this one is only a fish. What a strange country I seem to have got into!"

She walked along the street, looking on each side of her curiously.

Many of the houses had transparent domes, like beautiful soap bubbles; some were built of coloured pebbles, and pink and red coral, with branching trees of green and brown seaweed growing up, beside and over them.

Everything was strange, and unlike the earth; but what struck the Princess most was that no inhabitants were to be seen anywhere. A few fish swam about lazily, otherwise an unbroken silence reigned in the Sea-city.

Far away, at the end of the wide sanded road, a great marble palace towered over the surrounding houses; and as the Princess neared it she saw that the doors were wide open. She walked in fearlessly, and found herself in a large hall, with walls entirely covered with c.o.c.kle-sh.e.l.ls. Long stone tables filled the middle of the room; at which a crowd of small brown-coated men were seated, scribbling away with long pens, but in total silence.

The great grey beards of some of the writers had touched the ground, and even twisted themselves round the legs of the benches on which the old men were sitting.

Princess Sidigunda stood for a minute looking on, curiously. She then went up to one of the Trolls and pulled him gently by the sleeve.

He did not look up, but his pen slightly slackened its speed.

"What do you want?" he enquired in an uninterested voice. "Make haste, for I have no time to spare!"

"What rude people they all are!" thought the Princess. "The Sea-Troll said you would tell me how to find my golden shoe," she continued aloud.

"I wish the Sea-Troll would mind his own business!" said the little brown man vindictively. "He's always distracting us from our State business with all sorts of messages."

"Are you working for the State?" enquired Sidigunda.

"Of course! I thought every oyster knew that," replied the brown Troll.

"Are they particularly uneducated, then?" asked the Princess.

"Why they're _babies_!" said the brown Troll. "You can see them any day in their beds by the side of the road, if you have eyes in your head."

"What a place to keep babies in!" thought the Princess, but she said nothing, for she saw that the old Troll's disposition was very irritable.

"Would you tell me one thing," she began. "I do so much want to know why I saw no one in the streets as I came along. Where have all the people gone to?"

"Well, of _all_ the idi----" commenced the brown Troll, then checked himself with an effort. "Of course you can't know how foolish your questions sound," he said. "When you're two or three hundred years old I daresay you'll be more sensible. Why all the people are asleep--you don't suppose it's the same as in _your_ country!"

"Do they sleep all the time?" asked the Princess.

"Not all the time, of course. In this town it's two weeks at a stretch. In other places more, or less. By this arrangement we always have half the population asleep, and half awake--much pleasanter and less crowding. I can't think why it's not done in other places!"

Princess Sidigunda looked surprised.

"Will the children who took my shoe be asleep?" she enquired anxiously.

"Not they!" said the brown Troll crossly, "I wish they would be!

Children under twelve _never_ sleep. It's like having a crowd of live eels always round me! I'd put them to sleep when they were a month old, and not let them wake till they came of age, if I had _my_ way!"

The Princess felt rather frightened of this savage little brown man.

She was afraid to ask any more questions, though she longed to know why he and his companions were not asleep too.

"Go straight down the street," commenced the old Troll abruptly, "out of the green gate, along the road to the open country. Turn your shoe into a horse, and don't stop till you reach the Crab-boy's hut. He will direct you."

"That sounds simple enough," thought the Princess, "but I wish he would tell me a little more!"

The brown Troll, however, refused to open his mouth again, and Princess Sidigunda was obliged to start off upon her wanderings, with no more guide than the few words he had chosen to speak to her.

She ran down the silent street, and out at the green gate; the Fish-sentry allowing her to pa.s.s without objection. As soon as she reached the country road, she walked more slowly. She particularly wanted to see the beds with the Sea-babies, which the old Troll had spoken about.

For some distance she noticed nothing except wide sandy plains dotted with rocks, sh.e.l.ls, and waving forests of giant seaweed--huge fish darting about in all directions--but at last the scenery grew wilder; and close to the road side she came upon a grove of oysters, each half-open sh.e.l.l containing a Sea-child, whose head and arms appeared above the edges of the sh.e.l.l, while its feet and body were invisible.

Beside them sat an old woman, grey and wrinkled; with a small switch in her hand, with which she occasionally touched the Sea-babies as they leaned too far from their sh.e.l.ls, or as their laughter rose too noisily.

The little Princess stopped and looked at the children curiously; and the old woman stepped forward and made a polite curtsey.

"They are rather noisy to-day," she said deprecatingly. "The oyster-nurses have gone out for a holiday, and I have to keep the whole bed in order!"