Draracle's Halls

Hint: What's behind the tapestry?

Hint: What are all these plaques with triangular indentations for?

Hint: Is there any way inside the cage next to the worm exhibit?

Hint: I took an axe, but when I did, the ground lowered beneath me.

Nested hint: How do I get out of the museum?
(sorry, cannot decode section)
Hint: I'm out of the museum, but I still can't get to the southern continent.