For the first time since Snape had sat down opposite it him, Harry actually looked into his eyes, and for a moment all he could see was Snape clutching at his neck, bleeding out in the boat house. Snape froze, and Harry realised with a flash of panic that he had unintentionally broadcast that image to the other. He averted his eyes quickly and rebuilt his occlumency shields frantically to ensure nothing else peeked out. He risked a glance at the other out of the corner of his eye, and saw that the potions master had recovered quickly, looking as if nothing had happened. Harry risked speaking.