The Emerald Door
Most Fey creatures, by nature, make terrible investigators. The essence of their being is to a part of the world, and accept what it is, while the world accepts what they are. With so much done "by magic" they see little sense in teasing things apart, trying to figure out why Ley Lines are where they are, or why iron seems to brush off magic of all sorts*. Humans, meanwhile, are driven to poke and prod at the world and squeeze answers out of it. It's not an unknown trait among the Fey folk, but it's an unusual one.
Thale is "traditional", in that he does not care how it happened, just that it was interesting and bizarre and scary and hopefully, it will not happen again.
"The Librarians will look into it, right?" he asks, with a voice that seems to suggest Them, not Me, good. "I can tell you, it is frightening and very... scary... to lose yourself like that."
"So scary!" echoes a Fairy, trying to sound concerned.
"I think if it was Runes, the Library would have people who can read them. Elves can read them, you know. We invented them."
"Elves are smart," the Fairy confirms.
At this point Codgery Tom himself is curious.
"Bring'em on down, Lad, we'll have a look at those runes! If it's bothering my folk, it's bothering me and I want to see what all the fuss is."
*One researcher, a rare Fey scientist, believes there is a connection between iron being traditionally antithetical to all things Fey and magical, and iron having a unique atomic structure giving it the most stable nucleus of all the elements.