Rubbing his nose, Harry looked out into the starless night. The ground was illuminated by the few pools of light that shone out of the window. Apart from that, Hogwarts was blanketed by impenetrable darkness. He pulled his knees to his chest and waited for Neville to get comfortable before starting his explanation. "Severus is a notoriously anti-social person. And since I did not want to become curse-happy like Tom, teenage-Tom suggested a more muggle approach. For six weeks, the summer before last, I spent most of my days with him. Usually, I was just doing my homework or some reading. Nothing grand."