This is from TV guide, its kinda spoilerish:
Mistaking Shannon for an Other, Ana Lucia killed her. So it's not a shock that the fuselage folks have been a little apprehensive about the tail-section survivors joining their camp. Those feelings intensify on January 11 when the imposing Mr. Eko learns Charlie's got a Virgin Mary statue, and demands the recovering junkie show him where he found it. That means a trek back to the downed Beechcraft full of heroin and a dead Nigerian "priest." "Eko [is] connected into the story of the drug plane," says executive producer Carlton Cuse. "People are curious about where that plane came from. We're gonna explain that." And what's Eko been up to with that big stick he's always carrying around? Reveals executive producer and cocreator Damon Lindelof, "He's carving Scripture on it." Remember the monster? We last saw it in May's season finale, when it appeared as a slithering mass of black smoke. "We will be seeing the monster in the January 11 episode," Lindelof says. Indeed, one character will have an up-close-and-personal encounter with the thing so viewers will get a better, longer look, too. Source: TV Guide (Printed edition)
