You need to go higher up the ladder. The way they talked about Redlake, it sounded like he’d be at work personally.
So what you need to do is find someone who’s doing work that the boss is unlikely to delegate. But what?
Well, all this wine is presumably for a sacred festival. That means it’s got to be top quality. Or at least, good enough to avoid getting complaints – it’s probably bad for business to have most of the priests in the city griping about your wine.
Somebody’s got to taste it, then. And that’s not a job you can trust to just anyone. So if you can find a taster, it might just be Redlake himself. Even if it isn’t – well, they might be close enough to him to know the song is a signal.
So you start observing again. You don’t see anyone tasting, but you do see someone putting five bottles and three glasses on a tray. They head towards a small shed on the side of the brewery.
Maybe Redlake has someone hand-delivering the wine to him? Worth a closer look. You wait a bit, and the person with the tray leaves, this time with nothing on it.
On the other hand, you saw three glasses. Does Redlake need three separate glasses for some weird reason, or does he have guests? You walk over to the shed to see if you can overhear anything.
But the walls seem too thick. So if you want to know more, you’ll probably need to risk heading inside.
Best to plan your approach carefully, then.