Plane of Smoke

The plane of smoke seems to be a 5x5x5 grid, with some rooms missing in certain spots. The layout of each level is identical to the next, except that the top level has an entrance to the Plane of Air, and the bottom level has an entrance to the Plane of Fire. I made a crude little drawing of how I imagine everything looks, with the fires burning in fire plane, which is making all the smoke, and then the clean air at the top.

The red room indicates the entrance to FP (to the west), and the purple room indicates the entrance to AP (to the east). The funnel of smoke is in the center of each grid, and is shown in grey.

[map]

 [map]
The Library
[Yarash's image]

[Yarash's image]