Merlin locked the door leading out to the corridor, trimmed the wick of the lamp on his desk so that it shone with a low but clear light, and sat back against the cushions on his couch. He uttered a short phrase under his breath, and waited.
After a short pause, a haze of gently twinkling lights formed in the air before him, and a voice, unearthly but gentle, spoke.
"Hail, Lord Merlin."
"Welcome, Ariel," the wizard replied. "As always, I am grateful that you answer my invitation."
"And I, that you call me," came the response. "Do you wish me to stay with you for the evening? There are things we may discuss."
"I would welcome that," answered Merlin, "if there are not other pressing matters to which you must attend."
"None more pressing than the company of a friend of the Otherworld such as you are," she replied. "May I know what form you would have me take? A woman of your own kind, as sometimes before? I know you find comfort in that."
Merlin considered for a moment. "Indeed, Ariel. Could you be..." He paused for a moment, as if forming a picture in his mind's eye. "Not tall, but slim. Legs slender but strong. Long, wavy brown hair, an oval face." He hesitated, then went on, "Breasts, not too large, but well-shaped."
The lights shimmered, as if with silent laughter. "Merlin, you need not be embarrassed with me -- we have already shared much, you and I. Speak frankly of your wishes and needs; I am more than ready to fulfil them."
Merlin spoke again. "Let it be so, then."
"Merlin, Merlin, you leave much out," teased his visitor. "How should I be clothed? How have my hair? Should my manner be bold, or shy?" She paused. "And what of under the clothes? Silks, or nothing? And then -- " again the shimmer of amusement -- "downy, or smooth?"
Merlin blushed at that last, but managed a reply. "Hair, caught up with gold, so it can be let down. Clothes, the garb of a lady in her retiring chamber with her maids, and underneath, silks. Your manner -- I would not change that in any way, always on the edge of delightful familiarity." He paused again. "As for that last, let it be a surprise."
"Very well," answered Ariel. "So watch, if you will."
The cloud of lights seemed to swirl, then to dim, and a misty outline formed in the air by Merlin's desk. As he watched, the outline became more solid, until in the room stood a woman, exactly as Merlin had described in every detail he could see.
She lifted her hands to examine them, turning them over and back, then moved over to the mirror on the wall and looked carefully at the features she saw reflected there.
"This seems well to me, my lord," she spoke, her voice human now but still unmistakeably Ariel.
"To me also," Merlin found his voice.