We're not young enough that it's new, if that's what you mean.

[Eilonwy listens as he explains, brow furrowing at the end.] ..But if he sacrificed himself, how was he alive to learn? Unless it-- Well, no, if he hung himself, then.. [She rubs her forehead and tries not to make logical sense of it. Prydain had as many mythologies that were equally confusing if someone really considered them long enough.] Aside from that, you know these runes, then? I hope your learning them didn't follow the myth's story!