[Emery hmms a little at the question. He’s also heard that superstition before.]

I don’t think so? The Field Lord keeps farm tools and stuff on display in his manor and some of those have iron parts. But fairies are a pretty varied bunch, it might be a situation where it’s true for some kinds but not all. I never actually asked about it before.

[He’d just taken note of the farm tools and not thought much about it beyond that, and most fairies aren’t inclined to share tales of their weaknesses unprompted.]

I’ve also heard iron can repel ghosts so if that’s true maybe someone got the two confused at some point.