Re: WHO & WHAT.
I think I was already asleep when this was posted lol SO I think Arthur would have gone, since he was talking about it to Carol. Maybe even showed her the way, if someone else didn't?
*IF* Caroline were present, he'd totally sing a Little Mermaid song for her since he promised he probably would at some point. Probably "Under the Sea" to be on the nose a bit.
Otherwise I'm kinda feeling Phil Collins' "In the Air Tonight" so let's go with that one.