They did not like the idea of not going to the cottage again, for they felt it would not be right not to explain about the milk, and they had besides a motive, which Nanni's strange story had no way lessened—that of great curiosity.
'It would be a shame not to pay for the milk,' said Rollo. 'I should feel uncomfortable whenever I thought of it.'
'So should I,' said Maia; 'even more than you, for it was I that drank it! And I do so want to find out who lives there. There must be children, I am sure, because of the little beds and chairs and cups, and everything.'
'If they are all for children, I don't know what there is for big people,' said Rollo. 'Perhaps they're some kind of dwarfs that live there.'
'Oh, what fun!' said Maia, clapping her hands. 'Oh, we must go back to find out!'
She started, for just as she said the words a voice behind them was heard to say, 'Go back; go back where, my children?'
They were walking up and down the terrace on one side of the castle, where Mademoiselle Delphine had sent them for a little fresh air between their lessons, and they were so engrossed by what they were talking of that they had not heard nor seen the old doctor approaching them. It was his voice that made Maia start. Both children looked rather frightened when they saw who it was, and that he had overheard what they were saying.
'Go back where?' he repeated. 'What are you talking about?'
The children still hesitated.
'We don't like to tell you, sir,' said Rollo frankly. 'You would say it was only fancy, as you did last night, and we know it wasn't fancy.'
'Oh, about the cottage?' said the old doctor coolly. 'You needn't be afraid to tell me about it, fancy or no fancy. Fancy isn't a bad thing sometimes.'
'But it wasn't fancy,' said both together; 'only we don't like to talk about it for fear of vexing our cousin, and we don't like to go back there without leave, and yet we should go back.'
'Why should you?' asked their old friend.
Then Maia explained about the milk, adding, too, the strange things that Nanni had heard in the servants' hall. The old doctor listened attentively. His face looked quite pleased and good-humoured, and yet they saw he was not at all inclined to laugh at them. When they had finished, to the children's surprise he said nothing, but drew out a letter from his pocket.
'Do you know this writing?' he said.
Rollo and Maia exclaimed eagerly, 'Oh, yes; it is our father's. Do you know him? Do you know our father, Mr. Doctor?'
'I have known him,' said the old man, quietly drawing the contents out of the cover, 'I have known him since he was much smaller than either of you is now. It was by my advice he sent you here for a time, and see what he gave me for you.'
He held up as he spoke a small folded paper, which had been inside the other letter. It bore the words: 'For Rollo and Maia—to be given them when you think well.' 'I think well now,' he went on, 'so read what he says, my children.'
They quickly opened the paper. There was not much written inside—just a few words:
'Dear children,' they were, 'if you are in any difficulty, ask the advice of my dear old friend and adviser, the doctor, and you may be sure you will do what will please your father.'
For a moment or two the children were almost too surprised to speak. It was Rollo who found his voice first.
'Give us your advice now, Mr. Doctor. May we go back to the cottage without saying any more about it to Lady Venelda?'
'Yes,' said the old doctor. 'You may go anywhere you like in the woods. No harm will come to you. It is no use your saying any more about the cottage to Lady Venelda. She cannot understand it because she cannot find it. If you can find it you will learn no harm there, and your father would be quite pleased for you to go.'
'Then do you think we may go soon again?' asked the children eagerly.
'You will always have a holiday once a week,' said the doctor. 'It would not be good for you to go too often. Work cheerfully and well when you are at work, my children. I will see that you have your play.'
CHAPTER IV.
FAIRY HOUSEKEEPING.
'Neat, like bees, as sweet and busy,
· · · · · ·
Aired and set to rights the house;
Kneaded cakes of whitest wheat—
Cakes for dainty mouths to eat.'
Goblin Market.
The next few days passed rather slowly for the children. There was no talk of another expedition to the woods. And they had a good many lessons to do, so that short walks in the grounds close round the castle were all they had time for. They only saw the old doctor at meal-times, but he always smiled at them, as if to assure them he was not forgetting them, and to encourage them to patience.
There was one person who certainly did not regret the children's not returning to the woods, and that person was Nanni. What she had heard from the servants about the mysterious cottage had thoroughly frightened her; she felt sure that if they went there again something dreadful would happen to them, and yet she was so devoted to them that, however terrified, she would never have thought of not following them wherever they chose to go. But, as day after day went by, and no more was said about it, she began to breathe freely. Her distress was therefore the greater when, one afternoon just six days after the last ramble, Rollo and Maia rushed upstairs after their lessons in the wildest spirits.
'Hurrah for the doctor!' shouted Rollo, and Maia was on the point of joining him, till she remembered that if they made such a noise Lady Venelda would be sending up to know what was the matter.
'We're to have a whole holiday to-morrow, Nanni,' they explained, 'and we're going to spend it in the woods. You're to come with us, and carry something in a basket for us to eat.'
'Very well, Miss Maia,' replied Nanni, prudently refraining from mentioning the cottage, in hopes that they had forgotten about it, 'that will be very nice, especially if it is a fine day, but if not, of course you would not go.'
'I don't know that,' said Rollo mischievously; 'green frogs don't mind rain.'
'Nor blue birds,' added Maia. 'They could fly away if they did.'
At these fateful words poor Nanni grew deadly pale. 'Oh, my children,' she cried; 'oh, Master Rollo and Miss Maia, don't, I beg of you, joke about such things. And oh, I entreat you, don't go looking for that witch's cottage. Unless you promise me you won't, I shall have to go and tell my Lady, however angry she is!'
'No such thing, my good girl,' said a voice at the door. 'You needn't trouble your head about such nonsense. Rollo and Maia will go nowhere where they can get any harm. I know everything about the woods better than you or those silly servants downstairs. Lady Venelda would only tell you not to interfere
