Filter
Nothing as far as a life or soul goes - they seem to be good people. Diarmuid is the one I met with when we were gathering information and resources for another issue, and he was helpful.
The last fairy market location that I knew of was [here], it does change, and you may have to do a scavenge hunt to find the new location. I haven't been in a good week or two. Diarmuid's name was dropped when I offered some magical focuses as trade for information, and I have no idea where he sits on the ladder of responsibility. I'm not sure what he cost would be for opening a door to their realm, but they are heavily invested in this forest and community. Appeal to them on that level and you might get more to go on.