I've just got to try that line sometime soon, "Yes, young man, you needed to purge!" I'm beginning to wonder who the good Dr. Jackson purged that caused him to have to leave England!
Yes, it's becoming clearer that Mark wants to get in his "licks" for the 2009 King of Cliffhangers award.
The only clue as to who the naval officer might be is that Granger had to do everything he could to avoid passing out. To me, that means bad news.
So I'm thinking Paya is right in guessing it's Fitzwilliam. Now that doesn't necessarily mean that Calvert is dead; there could be another surviving boat out there.
Just to be on the safe side, though, Paya and I will prepare for the tar and feathering of you know who!