Then the quick-witted girl suggested a plan which Linus hopefully adopted; and having summoned the swans to lull the youth to sleep again, she withdrew into her hiding-place; for the increasing rumbling of the chariot warned her of the approaching danger. The giantess had not long returned to the cavern when she determined on making another attempt to gain the affection of the king's son. So she commanded the swans to sing him awake. The prince arose, appeared much more compliant than before, and expressed his willingness to marry her on the following day, if it were not otherwise destined. Then the enamoured giantess, in answer to his inquiries, revealed to him various secrets as to her magic powers; and when he asked her to tell him candidly whither she went so often in her chariot, she replied:-- "Ah, my dear boy, there is no cause for jealousy! The fact is, I have a brother who is a great giant, and we both, my brother and I, have but one life, and that is bound up in a Lifsteinn ('Stone of Life'). Now, you must know, the Lifsteinn is very brittle, and if it should be broken our death would be certain. Daily I visit my brother, who lives far off in a valley near a deep spring under three high trees. We then fetch up our Lifsteinn, which lies in the deep spring, and carefully examine it; for, nothing affords us greater satisfaction than to find our Lifsteinn uninjured." This valuable information was listened to with breathless attention by the young girl in her hiding-place; and when the giantess, having previously ordered the swans to sing the king's son to sleep, had taken her departure in the chariot, the girl lost no time in hastening from the cavern; and, rolling the ball of thread before her, she followed it over mountains and through valleys until she had reached the deep spring under the three high trees. The great giant, whose mere breathing made all the leaves of the trees tremble, was just placing the Lifsteinn in the lap of the giantess,--when the courageous girl sprang out from behind the trees, and snatching it up threw it on the ground and shattered it to fragments. In a moment both the giant and the giantess fell down dead. Now the girl ascended the ivory-golden chariot, took up the golden whip, and smacking it, recited the spell-- "Run, run my precious chariot, And take me to Linus the king's son!" When the chariot had entered the cavern, she at once commanded the swans to awaken the king's son; and this they did in strains of music so melodiously beautiful that no mortal had ever heard the like. Linus and his dear foster-sister, having provided themselves with as many jewels and as much gold and silver from the cavern as they could carry, took their seats in the chariot and commanded it to take them straight to the king's palace. Oh! how they all rejoiced throughout the whole kingdom! There was no end of festivities!