Remember when Michael went looking for Walt when he met Anna and the other survivors? Echo and Jin hid under a bush and watched the people pass. Those didnt seem liek the guys that took Walt. They seemed more elvish They walked by in bare feet, and 'member Ethan as well, he seemed alot different then the others. Also rememebr when the elvish people passed one of them had a teddy bear, and in the other survivor story that one kid that got taken had a teddy bear.

I dunno, maybe two different factions? That's what I thought at the time anyway.