'Out of here, I think,' said Rollo, tapping the trunk of a great tree close beside him. 'I think we must have come out of a door hidden in this tree.'

'But we kept coming down,' said Maia.

'At first; but the last part of the time it seemed to me we were going up; we must have come down the inside of the hill and then climbed up a little way into the tree.'

'Oh, I am sure we weren't going up,' said Maia. 'I certainly was getting quite giddy with going round and round, but I'm sure I could have told if we'd been going up.'

'Well, never mind. If godmother is a witch, I fancy the doctor's a wizard. But any way we're here, and that's the principal thing. Come on, quick, Maia, aren't you in a hurry to know if Waldo and Silva are at home?'

He ran on to the cottage and Maia after him. The door was shut. Rollo knocked, but there was no answer.

'Oh, what a pity it will be if they are not in!' said Maia. 'Knock again, Rollo, louder.'

Rollo did so. Still there was no answer.

'What shall we do?' said the children to each other. 'It would be too horrid to have to go home and miss our chance of a holiday.'

'We might stay in the woods by ourselves,' suggested Rollo.