[What it probably says is that they need to rethink their life choices, but that's low on the priority list.]

While the irony fails to amuse, the news of a concrete object involved in the ritual is the best news Raine's heard today.]

That's a reasonable guess. Especially if the library pointed it out specifically. [Since there's not exactly any text to draw from, the only assumption she can make is that everything that showed up in their heads is of particular note.] How long ago was this? And what do you know about the stone itself?