And certainly it seemed as if what she said were true; for, from that moment, it was as if a spell were cast over Thomas, making him forget prudence, and caution, and common-sense itself.
For he knew that it was dangerous for mortals to meddle with Fairies, yet he was so entranced with the Lady's beauty that he begged her to give him a kiss. This was just what she wanted, for she knew that if she once kissed him she had him in her power.
And, to the young man's horror, as soon as their lips had met, an awful change came over her. For her beautiful mantle and riding-skirt of silk seemed to fade away, leaving her clad in a long grey garment, which was just the colour of ashes. Her beauty seemed to fade away also, and she grew old and wan; and, worst of all, half of her abundant yellow hair went grey before his very eyes. She saw the poor man's astonishment and terror, and she burst into a mocking laugh.
"I am not so fair to look on now as I was at first," she said, "but that matters little, for thou hast sold thyself, Thomas, to be my servant for seven long years. For whoso kisseth the Fairy Queen must e'en go with her to Fairy-land, and serve her there till that time is past."
When he heard these words poor Thomas fell on his knees and begged for mercy. But mercy he could not obtain. The Elfin Queen only laughed in his face, and brought her dapple-grey palfrey close up to where he was standing.
"No, no," she said, in answer to his entreaties. "Thou didst ask the kiss, and now thou must pay the price. So dally no longer, but mount behind me, for it is full time that I was gone."
So Thomas, with many a sigh and groan of terror, mounted behind her; and as soon as he had done so, she shook her bridle rein, and the grey steed galloped off.
On and on they went, going swifter than the wind; till they left the land of the living behind, and came to the edge of a great desert, which stretched before them, dry, and bare, and desolate, to the edge of the far horizon.
At least, so it seemed to the weary eyes of Thomas of Ercildoune, and he wondered if he and his strange companion had to cross this desert; and, if so, if there were any chance of reaching the other side of it alive.
But the Fairy Queen suddenly tightened her rein, and the grey palfrey stopped short in its wild career.