@Suku: Basically, the Iron Roses who were at the party split up, a few to guard the Princess, the rest going to the mausoleum where the conspirators planning her assassination were hiding out. There's been some silly stuff and idle conversation happening there, they also passed by a couple paintings of historical events.
The Knights at the Mausoleum split into two groups, one to take out the guards and conspirators, the other to save the assassin's sister. The former group is caught up with two conspirators, the latter is facing a bunch of skeletons and one of the conspirators. The other three are unaccounted for.