Vague is all we have, I'm sorry to say. [Meja offers a friendly smile, if an apologetic one.] We were all brought here by a machine that scientists were monitoring. We think. Except the scientists have all completely vanished, and now we're stuck in this building.

[She misses the outdoors.]

Sometimes it sends people home, and sometimes it brings them back. And... sometimes they're missing memories of being here.