The Cube Region

1. I've matched the wall colors on five sides of the cube, but the sixth is giving me a headache. What should I do?
2. There seems to be a room missing. What should I do?
3. What's the significance of the panel?
4. What should I do when the mummy appears?
5. What significance is the sixteen-step staircase?
6. What do I do at the bottom of the stairs?
7. What's going on in the western end of the Narrow Passageway?
8. How can I keep the floor from disappearing?
9. How can the rats help me?

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