Welcome to the House of Slytherin.I'm your prefect,Tom Riddle.We are one of the most hated faculties,and therefore,all internal differences must remain within this walls,but otherwise we must stay as close to each other,do not tempt fate.Once you have come here,then you have the seed of greatness in you.Many people don’t like to talk about it,but many great wizards learned everything they know here,Merlin himself for example.If you have any questions,then my door is always open for you.