How can I buy that neat looking old lamp

Hint 1 of 8:

Have you spoken with the store owner?

Hint 2 of 8:

Have you found Hagatha's cave?

Hint 3 of 8:

Remember old Haggie is quite blind, but not deaf.

Hint 4 of 8:

Isn't it suprising that nightingales don't sing at night?

Hint 5 of 8:

Do you have the bottle from Neptune?