(OOC: She doesn't seem too surprised, actually)
"Surprisingly, you actually found our hiding place before opening the seal. Had you cast a Read Magic, you would have noticed invisible runes that spelled 'Hope is the Key' around the seal upstairs. Barring that, had you had Elpis try to touch it, it would have vanished. I doubt any of you could have opened it through any other means."
"In any case, if you're going after the Crux there, be wary--Sin awaits, sealed above with the Crux, and Eve's spies will no doubt notice...Eve will attempt to aid her old Mistress in repelling anything you attempt. Thus far, you have successfully defeated not a one of Eve's minions, and you killed the only thing around here that scares them, though it will remanifest in a few days--it's a spectral entity, like a ghost, and they do
that."
"For now, this place is safe from Eve for you to rest--in fact, I imagine the outside is safe from Eve for the moment too--she wants you to open that seal."
"Yes, when Xu informed them of the arrival, Envy headed after them out of jealousy of Elpis before Eve got word and ordered the rest of them not to attack...yet."