Zaana nods in agreement with Rex. She is relieved as the heat coming from Locke's body recedes. She smiles down at him kindly, although she looks slightly annoyed at the fact that he doesn't listen to her when she tells him that she wouldn't harm anyone here. True, she has already digested two people whilst she has been here, but she made sure that was painless, and they came back again afterwards, so as far as she was concerned, her promise held true.