Model Room, Crypt and Cathedral

Nested hint: Where is the Model Room?
(sorry, cannot decode section)
Hint: What should I do inside the Model Room?

Hint: Where is the Crypt?

Nested hint: How do I get rid of the Cathedral monster?
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Nested hint: Should I do something with the Crypt statue?
(sorry, cannot decode section)
Hint: When will I be able to enter the North door?

Nested hint: The Cathedral is a dead end! Where should I go from here?
(sorry, cannot decode section)
Hint: What will open the ornamental gate?