You're kidding, right? Nobody's going to give a shit if you have a hangover. All the cool kids (including all the other authors you're supposed to be having a continuous conversation with) are going to be lining up to hear Michael Connelly, Sue Grafton. Sara Paretsky, ect. talk about Poe's influence on mysteries. You can sit there and barf into your fedora for all anyone cares. ;)
I also got invited to do Continuous conversation. Mine is on Sat. How 'bout you? I did something similar at Magna cum Murder a couple of years ago. In that one, all three authors moved to a new table every five minutes.
This is a new one to me. Moving from table to table? I suppose that helps if the conversation flags. Is there an audience? Do you have to talk about Poe's influence? What a boring crock! Is anyone running this? And if so, can you prepare via setting up topics (always hoping that Edgar Alan can be scuttled)? How is this an improvement on the usual themed chats?
No, I think it's a free-ranging (or free range, maybe) discussion of the crime-writing biz, kind of like this forum. No Poe, unless he comes up. As for his influence on crime writing: obviously seminal, but you'd have a hard time getting away with the "monkey did it" resolution these days--contemporary readers would snort with derision (the Victorians lapped it up, though). You could also talk about Poe's gleeful invocation of violence against women, and his evident fascination with gore--both of which were completely fine with the audience he was writing for. When I teach "Murders In the Rue Morgue" I like to show my students a selection of Victorian post-mortem photographs--they really were obsessed with death.