A Slave to the Kings
These will be the rooms Klaus will be staying in, one of them is small enough that someone wouldn't be able to sit down, but it's also not small enough for him to stand comfortably, as the walls aren't smooth.
The second space is larger than the first but has absolutely nothing in it, the floor and walls are purposely uneven. The third room has a straw bed, a bucket for the necessities and another with water. The floor and walls are straight and, in general, it is much more comfortable than the other two. All three rooms have a remote-controlled temperature system.
"Give this to Victor," I informed Skyler, handing her the tablet. "I want it done today, by tomorrow morning at the latest."