"Where are you, my little mouse? Have you come to investigate where the snake is hiding? Come out, come out wherever you are," he whispered to the seemingly empty air. He paused to sniff the air, "I can smell you even if I can’t see you. You stink of fear, little mouse. You shouldn’t be here..." He cast a detection spell on the hallway only to come up empty. "Take care, little mouse for if I catch you, I’ll add you to my collection whether you like it or not." He quickly disappeared back through the portal to the Slytherin Common room.