Your Sense Motive suggests that everything the man said, he meant, and while he clearly did not tell you everything he knew about life in the sewers, you feel he shared whatever information he had on the questions you asked.
The party is able to follow the trail for a short while longer before it goes straight into a solid wall. No amount of investigation on your part is able to figure out anything beyond that.
Ni shrugs. "Maybe, maybe not. Perhaps he is a despicable bloke, and only felt in this instance that he was better off aiding us rather than resisting us. Perhaps he's a kind-hearted, misunderstood man who was unaware of the full nefariousness of these black cloaks. Maybe he just really liked us. Or maybe our beards frightened him into cooperation." Stroking his nonexistent beard, Ni strides boldly in the wake of Fulgrim and Lumoi'es as they search for tracks.
* * *
After spending a frustrating amount of time inspecting the wall, Ni curses at it, first in Sylvan, than in Celestial ("Surprisingly, Celestial is an exceedingly satisfactory language to curse in, if you know what you're doing.") Turning to the others, he says, "Do we reverse?"
OOC:
I'm assuming that means there's nothing for us to see here.
Ni snaps his fingers. "Right! Of course! 'Find the coin, bring it to the wizards.' Or something. Anyway, let's go! We're off to see the wizard!" Ni hops onto the half-in-focus Lu's back, who begins to trot off in the direction of the sewer's exit.
Paranoid PCs. I love it. Can't even trust their own employer. If you had fought your way through that encounter, I doubt you would have found it that easy.
[sblock=rewards]Experience
CR 5 Money Retrieval 1600 xp total/ 400 xp each[/sblock]
Where are you going now? Back to the guardhouse or on to the cook's house?