Sebastian walked down to the hidden door of the Slytherin students. His hairs tied in a neat braid. looking at the wall where the hidden door was he whispered "Boomslang." The wall parted. He rather liked using snakes as passwords, it was how they did it in his time and there were enough to make it interesting
He walked into the common room hearing all conversations and noise die out. He looked around the room and smiled. "Hello students, I know most of you saw me already either during class or at the feast. But I wanted to make sure that you all had a proper introduction. I am your head of house of course, Professor Sebastian Darkfall. I will make these little visits every once and a while, just to see how my house is getting on. While I am here feel free to come talk to me about anything. Classes, O.W.L.S., Qudditich. My stories as a Quidditch player for Hogwarts, or Ireland. Whatever you wish." And with that he found a chair near the fireplace hidden in shadows and took a seat