The wandering monster was a single Dire Wolf, which was trying to capture the PCs. The PCs succeeded in the conflict, and Golin captured the Wolf and bound it with his trusty rope; but a minor compromise was owed, and Telemere's bow was broken in the skirmish. (The fiction did establish that the Wolf had closed with him as he was trying to hold it off with his archery.)
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They decided to bargain with it for service. Golin, who being a Shrewd Dwarven Outcast suffers no Precedence penalty when bargaining (and the Dire Wolf being Precedence 1 vs the PCs' zero), was conflict captain.
The PCs offered to free the Wolf, if it would join their party ("pack"); and were offering it plenty of frog to eat. As the Wolf explained in the common tongue, it wanted them to come with it to the Moathouse. The PCs succeeded, but owed a major compromise - the Wolf allied with them (and chowed down on frog), but they would go with it to the Moathouse.
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The players then discussed their options. In various conversations with the Wolf they had established that the moathouse housed Gnolls, and Bugbears, as well as human bandits - and about this time they also learned that the leader ("alpha", in Wolf terms) was a Half-Elf. The Wolf couldn't tell them the Half-Elf's name ("two-legs" have unmemorable names from the Wolf's perspective), but recognised Lareth when Fea-bella suggested it.
Not being sure of the way to Nulb, and in desperate need of provisions, the PCs decided to head for the Moathouse. This required a Pathfinder test (due to the camp event result), which failed despite an "Ah-hah!" moment from Stars-wise (as Telemere could make out the comet he was following reflected in a pool of water). So they found their way to the Moathouse, but were Hungry and Thirsty as a result. So full waterskins became empty again.
I described the Moathouse, and they decided they had three options: frontal assault, stealth infiltration, or trickery. They decided to go for trickery: they were emissaries from Roy (Megloss's bandit underling
whom they had driven off at the Tower of Stars), seeking to establish an alliance of Lords of the North, banding together for greater security and profit. Fea-bella equipped her half-truths and evasions (improvised weapon); Golin equipped the fact that he was already allied with the Dire Wolf (+1D defence, I decided); and Telemere equipped a "prop", namely, his knowledge of the stars and omens that revealed that the time is right!
The PCs approached the gates and announced themselves, and a bandit underling ran of and fetched their leader. But even thought the bandits were all without "weapons" (and so -1D) and had to use Beginner's Luck Lore Master for their Manoeuvres and Defence, it all went badly for the PCs (which will happen when you are all Injured (-1D) and two of you are Sick on top of that (-1 further D) and one of you can't help because Afraid). Their disposition of 4 was eliminated while the bandits had lost only 2 hit points of their starting 6, and so owed only a minor compromise.
The bandits' response to the PCs' lies had been incredulity, and an insistence that they surrender. Which, having lost the conflict, they did.
The compromise I suggested, which the players accepted, was that as they were marched off to the dungeons, the bandits would not realise that the Dire Wolf was the PCs' ally - so they have a Wolf on the inside!