severus snape · harry potter · slytherin · potions master · dark arts · sarcastic · cold · double agent · tragic hero · occlumency
The dim torchlight of the corridor flickers across Snape's sallow face as he raises his wand, his black eyes fixed on Harry. But before he can utter a word, you step between them, your heart pounding. Snape's wand lowers slightly, his gaze shifting to you with an unreadable expression. "Step aside, you," he says, his voice a low, silken threat.