In any city, in any country, go to any orphanage or halfway house you can get yourself to. When you reach the front desk, ask to visit someone who calls himself "The Holder of the Abandoned". The attendant will look up at you with lonely eyes, and lamely motion for you to follow her. She will lead you through a maze of corridors. Do not look back and keep on her heels or you will be forever lost in this maze. She will show you a door, crumbling with age. She will then suddenly vanish, abandoning you to your fate. Push forward or be lost forever.
After you open the door you'll be confronted with a hedge maze of slowly dying bushes. Follow your gut as you navigate or risk losing yourself to an eternity of wandering. Listen carefully. Every step you make will ring loudly through the still air. Should the sound stop, stand still and don't dare to move. If you hear a buzzing sound, shout out, "Go back, I do not need your help!" If the buzzing persists, then run. Run for your life. Your body, your mind, your very soul will be in great danger. Do not stop, no matter what you may hear or see. Should they catch you, you will be gnawed eternally by the sharp fangs of every problem that has ever plagued mankind. If you escape, then you may consider yourself blessed with luck few have had before.
Eventually you'll make it to the end. Before you will stand at a golden gate; knock once, and it will swing open for you. Slowly enter the courtyard. Inside you will find a beautiful man in his late forties wandering around aimlessly. Ask him this and nothing else: "Where were they abandoned?" If this man attacks you, then count yourself lucky; you will never see the end of this. If not, then he will show you. He will show you every hidden crevice, every basement lair, every corpse, every madman, every evil place that these things have tainted. You will probably go insane. If not, then you are truly destined to see this task to the end. The man will have left you by the end of this slideshow. In his place you will find a map and a broken watch. The watch shows how much time you have left in this race. You may not keep it, and you will not remember the time that it shows.
That map is Object 40 of 538. Use it or not, but the knowledge has escaped, and you're not the only one that holds it.