The Hogwats Adventure

You're asked to collect the post by your mother, who is currently making breakfast. You flick through the large stack; junk mail, junk mail, junk- wait! Whats that? A white letter baring your name and a strange crest lays in the palm of your hand. You study it, curiously, and bring it in for your parents to look at. They smile as they read the letter and tell you;