Last time:

So many questions were floating around in his head, most important of these being; How did the boy get so good at potions, how did he know about he prophesy and who is this Him he cant stop thinking about. That last question spurned a feeling of jealousy and possessiveness inside of him. He figured now was the time to make himself known.

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Stepping out of the shadows he gave a small cough to gain attention. This was rewarded with a wand suddenly being aimed at his head as Harry Potter swirled round to face him, an uncharacteristic sneer curling his lips till he saw whom it was he was facing. Now the sneer was replaced by a look of worry and no small amount of annoyance, he was obviously pissed at being caught out at this time of night. But still no fear. The wand was still being pointed at him though and that was something Severus didn't appreciate.

"Put that wand down this instant Potter", he snapped. The boy lowered his wand but kept it in hand albeit with a loose grip. "Sorry sir, I thought Umbitch was back."

Severus felt himself wince at the thought of being compared to that old toad masquerading as a human.

"Now that you have obviously seen that I am in fact not Miss Umbrigde. Would you care to explain why you're out of bed at this hour?" he inquired while taking the opportunity to take a better look at the potions that had already been flasked as well as those still in their cauldrons, to of them were definitely complex brews, of the kind one would not expect a sixteen-year old to be making.

"I was brewing potions sir" Harry said softly, unsure about the current situation he found himself in.

" I can see that you dunderhead, what I want to know is why and how it's possible that you, who multiple times have disgraced my classroom, can brew potions without the unfortunate side effects melting or blowing-up the cauldrons and that without the aid of the Halfblood Prince's book."

Harry took a deep breath before answering with the truth, Merlin knows why but he doubted he would have gotten away with a lie anyway.

" It's my job sir, as in I get paid to brew them. I've been able to brew potions since first year, just not in your class so technically I didn't need the book it was just a convenient cover. Brewing is like cooking to me", the last was spoken so softly that Severus almost didn't catch it. On one of the tables he caught sight of a piece of parchment ,and curious, he picked it up. It was an order list with different potions written on it, most of them had been crossed off to show which ones were done. There were only six of them open, four of which the boy had probably just been brewing, meaning there were only two to go, Skelle-grow and Draught of Living Death. An insistent niggling at the back of his head had his gaze wandering to the top of the list, he nearly choked when he read the name written there.