Team Ambush:
Here's our conundrum as I see it. Our goal is to get two parties into the mountain through separate entrances. One of those is going to be the kobold caves and the other, I assume because we now have a password, is going to be the gate rather than the tower.
We have stopped the mercenaries. If we had time, we could wait for a patrol to weed the numbers further, but if there are 50-70 inside, then stealth and avoiding conflict are going to be advisable.
I will admit that I hadn't fully appreciated why we were making three parties -- I thought we could get by with 2. One group went to the Lake, and then there's Ambush. At this point, I am not sure which is the best way forward. We could
(a) split (in which case, Urgan would go to the caves)
(b) all go caves (still difficult to approach but perhaps we could find a way to avoid the watchtower -- an illusion could work. We just leveled and I didn't take Fog Cloud, but I could make a quick swap (if Fitz'd let me) and then we'd be good with that as well. (I chose Web, but had no intention of casting it.)
(c) all go in the wagon (as has been pointed out, we match the expected complement of the wagon, and now have a means of approach. If we do this, there's deception and a chokepoint at the gate. We might get inside, but we should be prepared for a major combat right away -- the goal of which would be, well -- what? To get away and hide? To kill all 50? I am not sure. But if someone tells me, then Urgan can be on board with that.
My preference is not to split the group further, and so if that influences Urgan's choices, his preference would be (c), (b), (a). But if we are splitting, then Urgan can still obscure the tower, and perhaps assist.
Let's decide!
The last alternative is to split up now, but of course that leaves the gate group with the task of muscling their way in if the bluff doesn't work. Any thoughts?