No, keep moving

You let out a small gasp before rising back to your feet. Thinking that this must be the work of the succubus, who the witch had labeled as "mostly harmless," you turn quickly and start to move farther down the hallway, staying as silent as possible. Several of the windowed doors are frosted over, preventing you from easily seeing inside, but near the very end of the hall is a completely clear one, and so you walk over to look in.

You look into a much different room, significantly larger than the previous one you investigated. The most prominent defining feature is a trio of massive iron tanks lining the far wall, each with a small vertical rectangular window on the front. Inside the window, at varying levels on all three, is what appears to be white liquid, and each of the lines are slowly rising.

However, a sight that causes some alarm is that this room also has someone inside. In the far corner, back to you, a humanoid figure is standing by a control panel. She appears to be wearing a bright white lab coat, in contrast to her long, dark hair, but underneath the bottom of the lab coat you can clearly see her ass, a deep cobalt blue color, and legs of the same shade that end in horse-like hooves. As you watch, she presses a large button on the wall, and the same loud bell rings through the hallway, the sounds of pleasurable mooing slowly ceasing in the distance.