Getting to the main caves safely is the big thing. Knowing that we are here we will have to move careful. We need to head back down during the day so we can see what we are doing and also make sure that we are well rested. IF we can get to their horses and take them we will slow them down big time. If we can kill all their wolves we can eliminate that threat. Yes asking them the safest route may offer some thought but they probably do not know since they are not around the leader. Therefore they will not know his plans. We need to capture another one who has more knowledge of the plans.
Now we know why JB wanted like so many fighters I think this place is a lot bigger than we imagined and the leader probably has some kind of special abilities. We need to ask the bandit how we get to the cave of the leader without being seen. Probably if we can take out the leader we can like make the others afraid.
We should ask the hostages about what kind of fighting skills their leader has too so we know what we're up against. Also I'm thinking if we wear their cloaks how will they know it's us? We can probably apprach with a disguise.