Sophie White

From RPGwiki

Sophie White, or Xaphania the White as she is also known, is a dragon who commonly adopts the alternate form of a young human child as a way of mixing in with human society. So convincing is her disguise that she often has a hard time of breaking out of the child persona while she is in that form. She has access to all her usual physical and magical powers while in the childish form which can be unnerving to those who witness such events.