Thanks to Lyly for the heads up.
Who opened the door of the sick bay for Sayid and Desmond? How'd the comm center get trashed? Episode eight will answer those Q's.
Oh, and P.S.: You heard about "the death" that's coming up, right? Well, fear not, 'cause from what I understand, this death does not mean it's the last we'll see of this person on the show—not by a long shot. Yay for time travel! Yay for Desmond! Yay for the love of this show!
Source: TV Guide
