User blog comment:Garr9988/New Mission/@comment-5782071-20170614023544/@comment-24588058-20170722160110

Must have missed that one. It's an interesting idea, for sure. It sure seems like those who had siblings seem to have had interactions with artifacts early on (it could just be coincidence, of course). I think it should be an occasional thing, though, especially in the days before the Tree of Idun.

I was actually debating something while writing out the story of the Destruction of Pompeii (I'll post it on the Fanfic wiki when I get the first day done). The Tree strengthens the bond between the Caretaker and the Warehouse, and lighting the tips of the roots strengthens it even more. But what was the interaction before this?

I believe that the Warehouse is, at least in part, a sentient thing. It can send people signs, and it protects people it likes. I believe this might have occurred from the beginning, perhaps as the number of artifacts stored in one place grew larger, or from some other thing/event. It had to have a Caretaker, or at least someone akin to one, at all times. How this connection plays out, I'm not entirely sure. But I think it is clear that the Warehouse has a Caretaker for a reason, and the bond has always been there, even if it wasn't as strong in the past as it is in the present.