How Can I Get Ahead

Hint 1 of 4:

Hmm...You also need some headgear for it to work.

Hint 2 of 4:

Talk to Legrande, the guard.

Hint 3 of 4:

Find his brother in the Olympus mines-get the Symbol.

Hint 4 of 4:

Bribe Legrande with the Symbol, and get the Olympus headgear.