Outcast

This isn't the typical fairytale you hear before going to bed. No heroic price on a gallant white steed sharpened sword in hand. No convalescent dragon capturing a fair maiden in it's fearsome dagger like claws. Let's get real. While there is a prince and a dragon... This fairytale isn't like the others.

Once upon a time, let's say medieval times, lived a outcast. A frail boy on the verge of death with his fretting parents given a choice. A blessing of eternal life or ever descending death. This blessing given by a well known witch with unimaginable power yet with darkness deep in her ice cold heart. His parents didn't even hesitate. Eternal life. Granted this gift the boy will never die. But this blessing has a price.. It's a curse.
Now the boy will be forever switching between the body of a dragon and a human with the "blessing"; of eternal life. With only a necklace to help him remain human.

Then the cursed boy and a privileged prince meet.

How's that for a fairytale?