Lady Amalthea is the only daughter of a little royal family ((you know ... back in time there were 1000000 of royal families ...)). But her parents died when she was pretty young so her ((of course)) evil uncle takes care of her and locked her away for pretty years! while he was getting older Lady Amalthea stayed young.
so ... one day she ran away, cuz she felt like a prisoner in her oft house and she didn't understand why she was hidden from the world (( hey c'mon guys: she of course noticed she can chance her look (she can't only turn in a unicorn! she can tun into pretty a lot! :P even people!) but she never met any one for pretty years! so she didn't know she was special ...))