The party were unsure if taking on Bane in his own lair was a good idea, especially after fighting the witch. Ezmerelda was very hesitant to enter the cavern, she seemed very unsettled and quite bothered a strange coincidence that Bane’s lair was right below the very place they found a sword to defeat Strahd?.Could they escape or would Bane just be lurking around the next corner?
Booger had no time for such questions and beckoned for his companions to follow him into the depths, which they did, reluctantly. Rothwulf warned the party that Bane can read their thoughts and would be three steps ahead of them at all times.
The cavern was no cavern at all, but a strange structure that was created by a colony of beings like Bane. Bane revealed that information via telepathy with the party. He also revealed that he was cast out of his colony for pursing arcane knowledge, which he eventually mastered. Bane sought revenge on his colony and convinced an undead army, the Order of the Silver Dragon, to slaughter them. Bane reclaimed the colony’s lair, which is where the party currently is. He has been using his time to study various supernatural creatures in an attempt to harness their abilities.
That is what he was doing when Rothwulf (and Rufias) found him in the Citadel in Invidia. After Rothwulf severed one of his tentacles Bane has been planning his revenge. He elaborated on how he was behind Ramas’s visions and how he used them to lure the party where he wanted them.
While exploring the cavern the party found themselves at a crossroads of paths. Booger greeted two Kua-toas (fishlike humanoids) by firing his crossbow at them. They quickly ran through the doors of a temple and barricaded it. Booger was quickly deterred by the barricade and the party wandered the tunnels. They wandered for several minutes before determining that they couldn’t leave as they kept returning to the same crossroads despite the direction they traveled.
After breaking down the barricade they made their way into a large dome shaped room with a large prismatic orb in it. Bane communicated that it was his most prized possession. Booger immediately shot at it with a crossbow bolt, then threw holy water on it and then appeared to jump into it. Unable to determine what happened to Booger, the party continued their exploration and found the Kua-toas, which they quickly slaughtered (the last one appeared to commit suicide). They were speaking Undercommon, which the party did not understand. When the party returned to the large room they heard Booger groaning and lying on the ground.