A hall in the tower: on the left, a window boarded with planks; along the bare-brick wall, a row of arched niches, one of which has, at its base, a small opening blackened to the point of soot — the remains of a former stove or fireplace flue. On the walls, several room numbers are written in blue paint — "12", a boxed "5", a circled "6". On the right, through a large arch, stairs can be seen rising upward — the same staircase already seen from another angle in exhibits No. 91–94.
This soot-marked niche is another, different trace of a heating system than the hypocaust-type floor heating already seen (exhibits No. 89–90): here, heat was produced directly by a stove or fireplace flue built into the wall, rather than by air circulating beneath the floor. The fact that the building shows traces of several different heating technologies suggests the palace was reworked and modernised more than once over its history.
As in the other exhibits in this series, the animation only shifts the camera barely perceptibly — the frame is already real and in colour.