My voice dies in my throat. About a million questions rush through my head, most of them starting with some variation of how is that possible. I'm not a girl easily thrown for a loop, but the loop's been tossed, like, halfway across the world at this point. I don't know what to say, because it never even occurs to me they might be lying. No matter what we've been through -- and we've been through a lot -- they're still my best friends.

But if Billy's been here three years...

I cough a little, standing straighter.

"...what's the last thing you remember? Of home? Since I'm guessing... Time's not really working linearly."