You’re idiots and you’re going to die (except DP). All the troll/gnome alliance has asked (ok, ordered) you to do is “follow”. They probably could have ambushed you if they wanted to, they haven’t demanded that you hand over your wallets or tell them your internet passwords. Just follow them. What’s the problem? You were going that way anyway, right? So you follow them, and they take you to their secret lair, possibly to torture you or whatever, and THEN you jump them. Find their treasure and their magical weapons (gnomes are famous for having magical weapons) and THEN skedaddle out of there.