Swamped

Well, the back door to the guildhouse is nearby. It's probably locked, but you'd feel silly if you didn't check and it turned out to be open.

It is, in fact. Perhaps the intruder got in this way. But why leave through a window, then?

You suppose that's a matter you can worry about once you actually find them, and hopefully get a chance to ask some questions. Unfortunately, that could be tricky. You never set foot in this guildhouse before you got hired as a ship's wizard, and you weren't inside for very long. Not to mention that for all you know, they could have changed the interior during the intervening years.

Well. The first thing to do is find the stairs, since evidently they're on the second floor. And you'd better move quickly - but preferably not with the aid of time magic.

You don't see the stairs in this room, though, which means you'll have to waste time searching...

...unless you're right about the intruder coming in here. Then they would have had to take the stairs. So if you could follow their trail, that would point you in the right direction. It's a risk, but you doubt you have time to come up with a better idea.

Of course, that means finding their trail... and you've just spotted something that might well be it.