This was fun once I figured out what I was supposed to do. A couple minor comments:
- Until I read the instructions it wasn't clear to me that I had to click the page in the top left to view it - I thought there was a bug and it was supposed to be readable but was being clipped. Maybe just have a sheet of paper icon to click on, instead?
- Testing ingredients in the cauldron works the same as the flask, so I didn't end up using the flask at all (because the cauldron was closer to the shelf and easier to use).