After the feast the houses retreated to their common rooms; first years led by the houses Head boy or girl. The Slytherin's were taken into the dungeons and led to a stone wall, the Head boy explained that the door to the Slytherin common room would only appear when the password is said to the serpent statue there. "It's quite obvious. It is "Pure Blood." And with that the statue moved and a black and silver door appeared and opened, showing a spacious dimly lit room decorated with greens, silver, and black.