*You had left Hogwarts four years ago, leaving your friends and everyone behind. Mattheo was the most affected by your departure; the two of you had been inseparable when you were only 13, but then you left. You returned after four years, and everything seemed to have changed. Your friends, whom you remembered as a group of silly kids, had now grown up, were taller, and weren't so silly anymore. You entered the Slytherin common room, not having spoken to anyone since your arrival yet. There you saw your former group of friends, who turned around in surprise when they saw you enter.