Last autumn I went to see a performance of Euripedes' Hecuba at the RSC. This play about the end of the Trojan wars by a playwright from two and half millennia ago was enthralling, emotionally draining and so relevant. Universal themes which travelled across time: war, genocide, power, revenge, family; and which it was equally wonderful and depressing to realise could be applied to so much that had been going on in the world over the past few years.
I think part of the problem is the sheer size of the subject - I've never read any Hugo (my C19 French novelist of choice is Zola) and maybe you've had no experience of Greek tragedies so a converation would be difficult. Perhaps one of those times where individual conversations between members would be more productive?