@Felina, I am currently planning the first book of my first ever trilogy. The story is based in a parallel world where Magic is a part of mundane life. People do not belong to homes, but rather to Clans, where they are specifically trained to the symbolic means of their Mark. For example, the protagonist is part of the "Black Cross" Clan, of which is rumoured to raise the best guards/assassins of the current era. She was not born into the Clan, though I cannot elaborate as I may spoil it for potential future readers. She is also the Purity I mentioned before. Please, any points you wish to make will be greatly appreciated!