[quote=@Zarkun]
[@Lugubrious]So a couple of questions before I type up a response. First, did the black mist reach those in the graveyard. Second, did those in the graveyard hear the roar?
[/quote]

Yes, both of those very easily.  The graveyard is right next to the chapel after all.  In fact, everyone in the graveyard should be able to see the Flesh Giant clearly.