Oh, she didn't know that! Hmm, she thought the photographs just came out of the camera all magical and yeah...hehe. She felt rather stupid, of course even moving pictures needed to be developed too. Then she looked up in surprise when the lights dimmed, giving the room a red hue, very mysterious...and very hard to see in. Meh.

She squinted hard as she tried to scribble down on her notebook everything that she needed to remember, and most likely forget by the end of the lesson, and to her dismay, her words kept on overlapping one another. She'll just sort it out afterwards.

Ok, time to brew the potion. Cass then pointed her wand into the cauldron and whispered "Scourgify" , then she peered into the cauldron, practically inserting her head in, trying to examine it for damages, when she was satisfied, she set the cauldron back down, cast Aguamenti on it - with difficulty, then cast incedio, conjuring a small flame under the cauldron.

Then she leaned back and waited for further instructions.