Mechanical Age

Hint: How do I open the metal platform near where I entered this age?

Hint: How do I operate the elevator in between the brothers' rooms?

Hint: Where are the fortress rotation controls?

Hint: How do I operate the fortress controls?

Hint: The real rotation controls don't have any displays on them!

Hint: Where should I rotate the fortress to?

Hint: Where are the red and blue pages?