In any city, in any country, go to any mental institution or halfway house you can get yourself to. When you reach the front desk, ask to visit a man who calls himself the "Holder of Ambition."

At the top of these stairs, the worker will leave you to continue your journey alone. You will find yourself standing at the beginning of an eerily calm hallway. Walk to the end.

 That is object 10 of 538. How you use them depends on what you hear.