Swamped

Well, whoever it is likely isn't expecting you. Maybe you can catch them by surprise. You slip your mask back on, and open the door as quietly as you can.

You see a cauldron, but you don't see anyone else around. That worries you - the chemist may have heard you and gone into hiding. Then again, they may have gone to grab something for the mixing. You need to be on guard.

You can also see at a glance that this isn't the same mixture you saw at the fishmonger. But it's an odd shade of red...

The same shade the ooze turned when Mortimer went wild, now that you think about it. Is this that same ooze? Is the plan to send the audience into a frenzy?

You should probably stop this. But you're not sure how it even works. There's no sign of a flame, so it's not going to spread by heating up. And you're not sure where the chemist is, so if you don't act fast, they might ambush you.

Whatever you're going to do, best to do it quickly.