The characters met Rukruk, the Hobgoblin "king" of Dwimmermount, and proceeded to murder him. Rukruk was holding a smaller creature, with a row of segmented eyes and black skin, that he was convinced had somehow betrayed him. He let the creature go in order to fight the party, and his elite guards came to assist him, but Rukruk fell before any of the guards could affect the battle. As the guards fell, soon only two were left and Sulla demanded that they surrender to Queen Ilona. One backed away from the battle, but the other vowed to fight to the death, and he was cut down by Ilona.
With only one of Rukruk's bodyguards left alive along with the small black-skinned creature, Sulla and Eppius began questioning the two, while Braak occasionally translated for Ilona and Horatius. They soon learned that from Poach, the hobgoblin, that there were about 20 other hobgoblins on this level and at least one scouting party that should be returning to Rukruk's throne room. Klayqus, the small black-skinned creature (originally a thorgrin) detailed how his tribe had no leader, that they were merely trying to survive and he was sent to negotiate a treaty with Rukruk. During the conversation he mentioned that he worshiped Arach-Nacha, the demon lord of spiders, and this enraged Eppius. Sulla declared that Klayqus was under his protection and a fight ensued, and Ilona cut Eppius down almost instantly.
the player playing Eppius had already planned on swapping out to a new character, so everybody was just looking for an excuse to kill Eppius off
Poach spoke of dead-but-alive things that roamed the halls of Dwimmermount, and Klayqus spoke hatefully of his tribe's enmity with the ranine. Klayqus then retreated to a lower level, informing Sulla that if they travel deeper into Dwimmermount they should use the stairwell next to Rukruk's throne, since the other stairwell is being guarded by others of his kind.
As the party backtracked their route, looking for a safe place to camp and rest, they ran into the hobgoblin patrol that Poach spoke of. The patrol was composed of mostly females, led by an outspoken hobgoblin named Rigob. They were dragging a captured tiefling behind them. Poach declared that Ilona was their new Queen and they were charged with retaking and restoring Dwimmermount, which Rigob was skeptical of at first but when Ilona spoke in common to her "subjects" Rigob quickly accepted her rulership and in turn revealed that the hobgoblins all understood the common tongue. The tiefling was freed and introduced himself as Levity, a jester from another world.
Levity is a bard, and it was explained that Levity traveled through a portal to Telluria into Muntburg and has learned a little about Telluria and Dwimmermount and decided to go exploring after hearing recent rumors of groups going up the mouintain, Levity found many headless orc corpses and eventually found a stairwell that he ventured down, while examining a room with many broken silvery-black skeletons (level 2B, room 1) he was captured by the hobgoblin patrol
Levity forgave the hobgoblins rather quickly once he was released, and the group decided to make camp in the main throne room. Over the next 10 hours, the other hobgoblin patrols and guard posts were recalled to the throne room, and most of the hobgoblins swore fealty to Queen Ilona. Only four hobgoblins left claiming that they would not follow Ilona, and Sulla made a mental note of which way they traveled so that he could help hunt them down and kill them later. Ilona also made note that a great majority of these hobgoblins were female.
I made hints that Rigob and Poach were a little restless with Rukruk's rulership, and tried to hint that they were hopeful for more information about how Dwimmermount had fallen, but at first the players were ignoring the hobgoblins' personalities. You can assume that this is what Poach and most of these hobgoblins looks like...