The whole Adam and Eve theme I think is a really good theory,I could see Ben maybe keeping Penny on the island to hurt Whidmore or maybe use her as another pawn in his so called game "with new rules now" people have said it before Ben does'nt kill anyone himself so trying to use someone else "sayid" would be a good bet!!

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what are you guy's talking about,who's your favorite other
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Sawyer