A Dragon's Curse

The Kingdom of Dryad. A small kingdom that is in a valley, with many trees of many colors surrounding it. The kingdom is pretty average, having the usual peasants, serfs, lords,
knights, and of course, the king. However, there is another, more secret social class, the Mythical's. They are the unknown, the ones who hide in the darkness of the trees. They only come
to villages owned by the Lords when they need to. They hide for one reason. The fact that they hold the most exotic, the most bizarre of creatures. Dragons, unicorns, pegasi, and much more. The only person that will ever know of these people are the king, who makes a profit from the creatures.
They may sell their fur, scales, horns, feathers, or even the actual animals themselves. However, a certain prince wants more then just resources from these creatures to sell....