Bronze.


Hint 1 of 7:
The green quarterstaff.

Hint 2 of 7:
A very useful rod.  What have you found that is bronze?

Hint 3 of 7:
Where did you get this rod?

Hint 4 of 7:
From Madame Sosotris.

Hint 5 of 7:
What was the clue to help you get this rod?

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