After the undead-king fight, the party head in the direction they believe will get them to the tower with the dragonborn camped on top. They find a room with a Hydra skeleton and a lightning trapped chest. then fight more elemental and mechanical guardians in a room with pillars and eventually find some dragonborn with whom Grelda almost starts a fight. A quick truce is made, they meat with the leader here and are invited for lunch.
It seems the dragonborn were tracking the Tiefling wizard (Now dead), discovered it was here looking for a powerful object, so now they want this object so that the teiflings can’t get it. Peter convinces (bluff/diplomacy) them that it’s better off in the party’s hands, and Sam activates the Third Magic Sphere. (One sphere on the top of each of the towers) The party continue to explore heading in the direction of the last tower.
They soon encounter a curious group, a yuan-ti, a bugbear and a mind-flayer (with thralls). A fight ensues with the eventual defeat of them all. At first they captured the mind-flayer and found out the evil group was here by an accident of dimentional shift gone wrong, and they were attempting to leave. So half the party wanted to help it leave, the other half in favor of killing it. Unknown to them it’s telepathy caught the killing part and figured he wasn’t going down so easily, so he starts a new, desperate, fight and is killed.
The party enters into the last tower’s base, find and fight some spiders, who apparently came from caves below that opened-up and collapsed from the recent quakes.