Emcat peeks through the chimneys to find two small, connected chapels with with black marble floors in which services are currently being held. Various humanoids, perhaps a dozen in total, are sitting on cramped benches, watching a few clerics chant by the two alters. Some of the individuals in the front rows seem human, but strangely have entirely black (not black in the human from Africa sense, black in the truly black sense) skin.
On one alter is a human, tied up and chained to the wall, with firewood below. On the other is one of the black-skinned humans.
One of the priests (U33), wearing black robes with the holy symbol of Shar, begins speaking in Common. "Tonight, our faithful fellow traveller in darkness Idzhar will be risen up by the favor of Shar, while the traitor Kivorl shall be sent to face eternal torment. Begin the summons."
They start chanting in Infernal.
He takes a big glowing red crystal, nearly a foot long, and plunges it into the guy who is tied up (T33). The man screams in pain as black smoke begins rising from every opening in his body. The wood suddenly ignites and starts burning him....
Meanwhile, Ubaar breaks down the next door, and a hapless summoned critter jumps through and gets blasted.
In the room is a table surrounded by comfortable chairs, three doors, and walls richly appointed with paintings and tapestries. An austentaciously-dressed gnoll with a bright yellow suit, much jewelry, a cane, and a bugbear bodyguard is talking to three black-skinned humanoids, one of whom appears to be a robed human bearing a holy symbol of Shar (either a mage of cleric), the other two appearing to be large Orcs (or possibly half-ogres), wearing the same plate-robes combinations as the guard in the last room. The gnoll runs to a door (Q16) and opens it, with his guard drawing a greatsword and backing towards him.
The holy symbol guy opens a door (S16), while his guards aim their polearms (you are not sure what these are...one end has a blade, the other a hook with a point behind it for setting against a charge) in your direction, trying to trip Ubaar in the doorway and slow you guys down. They hit him twice (34dmg), but he is too strong for them, forcing them to drop their weapons and draw their swords as they back towards the door.