AFTERMATH. Who made it out? Who's hurt? Who's taking over medical treatment? Anyone get hit some one of those weird legendary actions? Good thing it's the last day before the reset. We're all going to reset, right? But what does that mean for the monolith or the beholder?
Also, there are a lot of fragments of the monolith. You can touch them now, they don't appear to have any effect now that it's destroyed, but perhaps the strange material can still be useful in some other way?