I am not going to flog a dead horse on this one. But, Datu writes that Samantha said... Kalani, writes what he remembers 20 days after it happened without feeling he had to keep notes about actions at that time.

Second, as 7odd says, we do not know if they can see or be seen. Samantha says she was taken from "them" and "they" were with me.

No reason there could not be two groups. Hell, as far as the story goes, it is a "must see" attraction.

Kalani
Samamtha and her group
Riley and Angel
Scratch and lizzy and all
Saul
Less blatant: Skittles gets there

Maybe a group of mallers is not out of the question.

Scratch also says You'll find something... Would she say that so camly if her plan to locate The Other Tower failed? We all know how cool and collected she is.