There is no trail for my PCs to follow between the lodge and the portal (it's been snowing for a week), and the PCs straight up killed Rokhar, so the only clues they have to where the portal is the map with the X at the portal, and the X's at the possible ambush sites, and Rokhar's apparent plan to back stab the fey (huge stockpile of alchemist's fire, among some other things).
Upon finding Argentea, they brought her back to town, then since they were in town anyway, they went to check out all of the X's that were along the road (potential ambush sites). They didn't find much other than some more trees decorated with ravens, but the process took enough time that they weren't going to reach the lodge until evening, so I decided to through the full goblin band in.
It worked pretty well in the end. The exhausted goblins performed as expected, performing as distractions while the fatigued goblins went to work on the characters who came close. Ended up with two characters diseased (although they don't know it yet), some scary moments with the goblin dogs charging the wizard who killed their master, but they managed to force the goblins into a panicked escape to their freezing deaths after the party killed both their adept and their leader.
Keeping track of so many characters was a good test of Combat Manager.