Maerek looks around, "Right then, let's go. Riann, would you mind watching over him? Also, um, don't let anything damage the furnace. In case we need it later, you know?" Riann nods in understanding and moves so he can watch all the doors. "Well, no use standing around," the artificer mutters as he leads you deeper into the facility.
After several more minutes of walking through hallways, Maerek opens a reinforced door. The revealed scene is absolutely horrific. It is as though someone combined an abattoir with an assembly line. Human and warforged corpses lay in piles, waiting to be used. Various constructs, similar to those you fought before, hack apart and rebuild bodies. You realize that what you thought was another pile of... materials is actually a massive construct. Every few moments it stirs a little, but it doesn't seem to actually be doing anything. If any of the room's occupants have noticed you, they don't show it.