@deadmanwalking Really? I'm looking at the image right now and the dotted line border goes around the water. It even talks about how the monster guarding it doesn't swim through it.
> The primeval crocodile has learned to avoid moving through Dahak’s shell and stays outside the perimeter as long as the shell is active.
It also says there is no floor outside the fortress to walk on.
> The fortress palisades surround the central building like a ledge, rising 15 feet out of the water.
It literally says that the PCs can use a boat towards it.
> The swamp water surrounding the fortress is 5 feet deep. To reach the fortress, the PCs must Swim, Fly, or take a boat, and must Avoid Notice as they approach if they want to keep from being detected.
They knew there was a magical barrier. I explained it multiple times. But there isn't anything that seems to say it's dangerous. I mean, yes, I know that it's dangerous. What I'm looking for here is any information I might have missed that should communicate it's a bad idea other than them generating a gut feeling. They haven't ran into any dangerous dragon pillars before this point. It's essentially a shape L path from Akrivel to the elephant people then to the cult.
They did run into Gherard, but they let him leave with the pillar thinking it was a good idea to get rid of it.