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Back to the doll hospital: According to the press release about the episode, the girls follow more clues from Alison (Sasha Pieterse) back to the "doll hospital" they saw two episodes ago. Apparently it "holds some very familiar looking dolls and a little boy that knows more than he leads onto." As we see in this sneak peek, the store's owner is less than useful, so hopefully the kid will be more forthcoming.
Jenna's eyes: Apparently "Jenna's [Tammin Sursok] surgery brings about more than just the possibility of regaining her sight." We don't really know what that means, but based on this sneak peek we do know we'll see Jenna remove those bandages.