 " The Moth " aired on November 3 , 2004 . The episode was directed by Jack <unk> and written by Jennifer Johnson and Paul <unk> . The church scene with Charlie and Liam at the church in Manchester was actually filmed on Honolulu , where the scenes on the Island are filmed . Monaghan says that he feels Charlie 's black <unk> is a sort of " security blanket " that he hides underneath and uses it when he feels " lost . " The " heroin " that Charlie is supposedly <unk> is actually brown sugar . Monaghan revealed this in an interview with <unk> magazine in October 2005 , saying , " [ The heroin is ] brown sugar . You get some really sweet <unk> . You have to be careful not to <unk> too much of it , but it 's happened a few times . You just find <unk> up your nose couple of hours later . " 
