I would say it is probably more fortunate than unfortunate that you haven't met them since arriving. Even with what little you have been able to tell me, it sounds like they are best left encountered.

[Diarmuid frowns when she mentions the catacombs.]

They find themselves there without reason? Are they unwillingly taken then? Do they just appear there? Have they said much about what they have found inside? Has anyone tried to go there willingly to explore?