‘Very good,’ replied the witch, with something that she meant for a smile, ‘but to-day it is late. To-morrow you shall go. Now enter, and you shall sleep with my lizards.’ ‘I cannot stay,’ said he. ‘I must go back at once, so as to reach the road from which I started before day dawns.’ ‘If I tell you, will you promise me that you will bring me this jar full of the many- coloured water from the spring in the court- yard of the castle?’ asked she. ‘If you fail to keep your word I will change you into a lizard for ever.’ ‘I promise,’ answered the boy. Then the old woman called to a very thin dog, and said to him: ‘Conduct this pig of a child to the castle of Come-and-never-go, and take care that you warn my friend of his arrival.’ And the dog arose and shook itself, and set out. At the end of two hours they stopped in front of a large castle, big and black and gloomy, whose doors stood wide open, although neither sound nor light gave sign of any presence within. The dog, however, seemed to know what to expect, and, after a wild howl, went on; but the boy, who was uncertain whether this was the quarter of an hour when the giant was asleep, hesitated to follow him, and paused for a moment under a wild olive that grew near by, the only tree which he had beheld since he had parted from the dove. ‘Oh, heaven, help me!’ cried he. ‘Cross! cross!’ answered a voice. The boy leapt for joy as he recognised the note of the owl of which the swallow had spoken, and he said softly in the bird’s language: ‘Oh, wise owl, I pray you to protect and guide me, for I have come in search of the Bird of Truth. And first I must fill this far with the many-coloured water in the courtyard of the castle.’ ‘Do not do that,’ answered the owl, ‘but fill the jar from the spring which bubbles close by the fountain with the many-coloured water. Afterwards, go into the aviary opposite the great door, but be careful not to touch any of the bright-plumaged birds contained in it, which will cry to you, each one, that he is the Bird of Truth. Choose only a small white bird that is hidden in a corner, which the others try incessantly to kill, not knowing that it cannot die. And, be quick!--for at this very moment the giant has fallen asleep, and you have only a quarter of an hour to do everything.’