"Stir four times, clockwise." He told Neville, the moment Neville finished stirring, Harry waved his wand over the Potion. Pouring pure magic into it, which then sealed the final step."Now, let’s bottle up our vials." Harry grinned widely."How does it feel to complete a Potion?" Harry asked playfully."Pretty good" Neville laughed. Together they bottled up their Potion, wrote their names on their vials and dropped them off in the tray on Severus’ desk."Well done" Severus said nodding at them after he inspected the vials. Only three groups had finished so far, unsurprisingly it was Harry, Hermione and Draco’s pairs that had. Gregory Goyle and Millicent Bulstrode somehow managed to blow up their Potion at the very start. Vincent Crabbe and Lavender Brown left their cauldron on medium heat for too long and it bubbled and then hardened."Alright everyone! You have another ten minutes until this class ends. If your Potion is not bottled in a named vial and on my desk before then.. Well you fail this lesson, and you will repeat this Potion next lesson instead of moving forward. The longer you take, the less time you get for your future work, and you risk failing this year. If you fail this year, you will be repeating it instead of moving forward to your third year." Severus said, he was staring at them all intently. Failing would be horrifying for any student; it was a shame to their house, but for half-bloods and purebloods; it was a shame for their family name."You have two weeks to write me an essay on the use of Flobberworm Mucus in Potions. I expect no less than two rolls of parchment, but no more than four." he continued, the charmed chalk was now writing down their homework on the board for them to copy. The last of class was starting to bottle up their finished Potion’s as their Professor spoke. But everyone stopped where they were standing or sitting, when a knock on the door interrupted the speech. Without waiting for Severus to acknowledge them, the knocker opened the door and stepped inside. Professor Dumbledore stood there, his blue eyes devoid of the usual twinkle, he looked tired and upset. Madam Pomfrey stood beside him, her own eyes sad and downcast.