User blog comment:Night at the Kashmir/My Theory why Sally was really sent to Fontaine's./@comment-24769282-20140926021908

I agree with Night at the Kashmir, as far as why Sally was down there, I believe that Atlas must have "purchased" her, but the terms of conditions between them (Cohen and Atlas) weren't good so that's why at the beginning of Episode 2, Atlas was finally able to retrieve her. It does seem that he was after the girl while Elizabeth was already just a pawn, a right place wrong time situation, to be killed off. I don't think Cohen hoarded the lot of Little Sisters down there for "safe keeping" since he wouldn't have easy assess.

Atlas probably wanted Sally as a Plan B, C or so on as back up, as in case, as it seemed, his original plan to befriend and win over the splicers failed. After all, Splicer get all mouth watery and weak at the knees at the sight of a Little Sister and her ADAM supply. And at the point while he was done there, he himself (Atlas) thought that ADAM production stopped or at least was no longer in production, which places the repurposing of the Little Wonders Facilities by Ryan Industries to some time after the Department store was sunk.