The mist has left all surfaces wet with condensed water —or you hope it is 'water'— which drips from the grass, reeds, and trees as you pass.
As if by coincidence, as Ezme reaches out her knife, a large drop falls from a tree above and, with a hiss, extinguishes the party's torch.
For a moment you are plunged into darkness before your eyes can adjust, and then the bright wall of mist vanishes, leaving you unable to see all that much further ahead, but definitely further than with the blinding, reflected-light coming back at you.
In that brief moment you think you see shapes moving in the mist, just out of reach, but that could just be the tendrils of mist themselves...
• Where is everyone standing in respect to the party? Are you in a line, in a clump? Do you have people between you and whatever is in the mist?