In that case, as nothing else eventful happens during the second evening of feasting and socializing, Rianna can go catch some rest. Heal another 5 damage and treat yourself to a medpak- this puts you at 10 damage.
You would rest more, but you are awakened by the sense of death nearby a few hours past midnight.
You step into a spectacular scene.
The banquet hall is, as you remember, a rectangular room at the center of the manor. You are on the west side of the manor, where most of Geful's help stays. The north side was the Mecrossans' quarters. The east side is Geful's area entire, including his study. You sensed death there. The south side is simply the front door.
East and west are the longer sides of the rectangular hall.
Geful's thugs have lined the walkways on your side of the hall, streaming inaccurate flows of laserfire into the north side. They are led by Slate and his gunmen, who have moved down and taken cover by the front door to the south.
At the north, Gallador and Rand are using the heavy handrails as cover and are busy deflecting incoming blasts. They are leading Mecrossan assassins with pistols out onto the upper level balcony so they can return fire with accurate bursts. Both sides are reinforcing equally, and you can sense Gallador's hatred and Rand's arrogance quite clearly.
If you engage in the fight, you will not be able to investigate what happened in the east wing. You will have to sneak through or around.