[ John sighs. Of course, it could never be that simple. ]

I don't know anyone here well enough to trust them, anyway, but I don't like the idea of anyone else hooking on our network.

Do we have any idea how they transmit, what carries the signal? Or is the answer just, magic?

[ They look electronic; they look like pocketwatches, with gears, making them mechanical at the very least. But as to anything else, it's difficult to tell. ]