"I wish I was a unicorn," Amy said.
Almost soon as she said it, Mary felt a strange but wonderful sensation, as if living sunlight was radiating from her body. It manifested around Amy, and as the little fairy watch the child began to transform.
Her hair turned white and fell long down her back, as her face and features softened even more. Her clothes swirled with magic as she fell to all fours, fur covering her swiftly growing body as her hands and feet changed to little cloven hooves. Her tail grew out swishing as her face pushed into a horse's muzzle. The last change was a horn, which as it grew turned gold, along with her hooves.
Magics swirled around the new creature as it pranced and whinnied, standing tall now as a beautiful mature unicorn. Amy bowed her head to Mary.
"Mara....thank you."
"Amy?" Mary asked.
"I was, not now. The child that you transformed has been remade into me. I am now Amthryl...