[Galethvia]

No, the battle ended normally and I got back to the floor of the dungeon I was on, but after looking around the floor, the stairs were gone, and there weren't any more mobs (thought that may have been because they were all killed, though they may have also vanished like the stairs...and I think the gathering points may have vanished too). Luckily though, all it took was a relog to get me out of it.