Well, if you buy into all the "moving the island" talk through a wormhole, then I bet Keamy will blow up the ship just before they all get sucked through time and space... so as to leave no evidence in the current time-space continuum of the ship or the island's former whereabouts. My bet is that neither Ben nor Widmore want any third/fourth/fifth parties to know about the island either.

I still don't quite understand the "torch the island" comment from last week...

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