Beren and Jocasta suddenly heard something hard scraping against stone, which would not be too disconcerting if the sound was not occuring in two dozen places at once, all around them. Jocasta spun, trying to gauge if there were other entrances they might have missed, anxious even after getting confirmation from her drones to the contrary. Beren understood how she felt. Chitters and screeches echoed in the wide cavern, but chillingly, Beren realized were not the random, animal noises one might suspect. 

There were words in those cries. 

Buri looked nervous, but there was very little room for cowardice in the culture of the daurgrim. Even if he was shitting his pants, he would stand his ground or be sent to the halls of the dishonored at his death. Even Beren knew very little about that bit of dwarf theology, but whatever that involved, it was worse than anything a dwarf could rightly imagine. Beren made it to the stairway, but was nearly bludgeoned by a ball of dark glass. The object sailing past him, and were it not for his finely honed reflexes, there was little doubt it would have shattered near the center of the floor. Instead, Beren spun and caught it, completing the spin and sending it flying back down the stairs. Screams arose as a small VOOMPSH and a ripple of concussive force blew up the stairway. Whatever it had contained, it smelled like urine and dead fish. 

"Acid flasks!" Buri cried with an accusatory tone. The dwarf had a handful of jagged stones in his arms, hustling to the lip of the barrier. 

"Good catch," Jocasta said to Beren just after an appreciative whistle. 

"No big deal," He replied with (fake) smugness, shrugging his big shoulders. Jo's eyes widened, and Beren caught her look, turning to see a Gundarog that had ascended the barricade quickly, launch itself from the top of the newly formed stone barrier, leaping at Jocasta with its spindly limbs out and hands aimed at her throat. Its grotesque face contorted in a scream of violence. Jocasta squealed and ducked even as Beren leaped, his foot snapping out to hit the thing in the side of the head, breaking its neck with an audible crack of bone. The thing landed in a tangled heap just as Beren himself landed, knees bent and feet shoulder width apart, his hands splayed in a curious stance of the far east. 

"Ok, now you're just trying to impress me." Jocasta laughed, albeit a bit nervously. 

"Yeah, I shouldn't press my luck," Beren responded curtly, still in a jocose fashion.  

"Little help!?" Buri yelled, tossing large stones down at the horde now teaming on the stairway. Beren leaped forward, seeing a tide of ugly, malformed humanoids with sallow, mottled skin and covered in black, serrated armor pushing against one another and running up the stairs on all fours. A few, somehow, were even crawling along the walls. Behind them, the warband gave the central ground a wide berth, as acid still sizzled on the ancient stone. A few limbs still smoldered from the unfortunate creatures that had been hit by their own cruel device. 

"You have any spells that can hit a bunch in a group!?" Beren called to Jocasta, ducking a spear thrust and yanking the weapon out of the hands of its user, tossing it to the floor. He grabbed his axe in time to block a sword cut with the haft, shoving the smaller creature back into its companions, pushing a number of them down for a moment. Buri did his best to pelt the wall climbers, too short to use his own axe with the barricade in front of him.