The Water of Life - Jacob and Wilhelm Grimm

When the second prince had thus been gone a long time, the youngest son said he would go and search for the Water of Life, and trusted he should soon be able to make his father well again. So he set out, and the dwarf met him too at the same spot in the valley, among the mountains, and said, Prince, whither so fast? And the prince said, I am going in search of the Water of Life, because my father is ill, and like to die: can you help me? Pray be kind, and aid me if you can!
Do you know where it is to be found? asked the dwarf. No, said the prince, I do not. Pray tell me if you know.
Then as you have spoken to me kindly, and are wise enough to seek for advice, I will tell you how and where to go. The water you seek springs from a well in an enchanted castle; and, that you may be able to reach it in safety, I will give you an iron wand and two little loaves of bread; strike the iron door of the castle three times with the wand, and it will open: two hungry lions will be lying down inside gaping for their prey, but if you throw them the bread they will let you pass; then hasten on to the well, and take some of the Water of Life before the clock strikes twelve; for if you tarry longer the door will shut upon you for ever.

Then the prince thanked his little friend with the scarlet cloak for his friendly aid, and took the wand and the bread, and went travelling on and on, over sea and over land, till he came to his journey’s end, and found everything to be as the dwarf had told him. The door flew open at the third stroke of the wand, and when the lions were quieted he went on through the castle and came at length to a beautiful hall. Around it he saw several knights sitting in a trance; then he pulled off their rings and put them on his own fingers. In another room he saw on a table a sword and a loaf of bread, which he also took. Further on he came to a room where a beautiful young lady sat upon a couch; and she welcomed him joyfully, and said, if he would set her free from the spell that bound her, the kingdom should be his, if he would come back in a year and marry her. Then she told him that the well that held the Water of Life was in the palace gardens; and bade him make haste, and draw what he wanted before the clock struck twelve.

He walked on; and as he walked through beautiful gardens he came to a delightful shady spot in which stood a couch; and he thought to himself, as he felt tired, that he would rest himself for a while, and gaze on the lovely scenes around him. So he laid himself down, and sleep fell upon him unawares, so that he did not wake up till the clock was striking a quarter to twelve. Then he sprang from the couch dreadfully frightened, ran to the well, filled a cup that was standing by him full of water, and hastened to get away in time. Just as he was going out of the iron door it struck twelve, and the door fell so quickly upon him that it snapped off a piece of his heel.