Okay, I think that looks about like this, assuming we prioritize all the other stuff over gathering information. I dunno if that's right, but that seems like a side goal and we're still putting some dice into it (EDIT: Shifted the dice a little to making the interrogation better):
[X] Plan: Trolls Are Not Known For Their Cunning (v2.0)
-[X] Invest 30 dice into combat Pool, 6 into Hugr, 3 each into Tactics, Silver-Tongue, Scouting, and Strategy, 2 into Barb-Tongue, and 4 each into Wildcraft and Wordplay. Activate Probe-Trick and First Impression. (-60 Orthstirr)
-[X] 0d6 Attack
-[X] 0d6 Defense
-[X] 0d6 Intercept
-[X] 41d6 social stuff
-[X] Activate your Twist to generate 20 Dice, Activate Fight Of Your Life to generate 5 dice (-35 Orthstirr). Total of 66 dice to add to the social checks.
--[X] Make sure at least Sten is out of sight (he can hide behind Abjorn if nowhere else).
--[X] "By the gods! What at terrible noise!" you ask--after all, you're just an ordinary woman after all, who would find you threatening. Look down on the Troll. "Oh good heavens Sir Troll! What has happened to you? Who could have done this to you?" (28d6 + First Impression)
--[X] Sweet talk the Troll, let him think that you're just a woman who coincidentally heard his distress. Give a hint that you had no idea such a troll was here, when you were simply exploring the area looking for something or other. Trick him into thinking that he was deceived, baited into a trap by a wicked man. (28d6)
--[X] See if you can get information out, (22d6), offer him some dinner as he goes on his way to ideally Repay the Favor of the Treacherous Man who sent him here. (28d6)
--[X] If this works, have him followed in secret by your Fylgja, shrouded from recognition With Covered in Rags (-18 Orthstirr). Equip it with some defensive Tricks if you have time (specifically Sidestep, you'll pull out your spare work knife to make room).
--[X] If this fails and it attacks you, use Halting Vortex (-4 Orthstirr) and pivot to something else while you fall back to where the others are., but the idea of fighting this thing all night if you can turn him into an arrow aimed at the Curse Master tickles you something fierce.
EDIT: Approval vote:
[X] Plan: Trolls Are Not Known For Their Cunning, legal edition