You are seated in front of the Timejumping Adventurer's Club (TAC) initiation  
committee, waiting for confirmation of your status as a full fledged member.   
The past few weeks have been grueling.  First, there was the endless battery of
physiological and psychological tests - you hope to never see a rubber-gloved  
hand again.  Then there was the hefty initiation fee you had to fork over.     
                                                                               
This final meeting with the committee is just a formality, you were told; sign 
some papers, answer some questions and you're in.  Strangely, your expressed   
eagerness to get the paperwork over with was met with laughter from the other  
TAC members.  But these adventurers struck you as odd, anyway.  Suddenly, a    
bright light is shone directly into your face and the Really Grand Adventurer  
leaves the committee table and approaches you.  Is this an initiation or an    
interrogation, you wonder.                                                     
                                                                               
His face inches from yours, the Really Grand Adventurer begins to speak.       
"You're under the impression that you're almost one of us, aren't you?  Well,  
in one sense you are.  Within ten minutes, your application will either be     
accepted or rejected.  But it will take much longer to fulfill your final      
requirement.  Confused?  Beyond that door is a time machine, not a state of the
art TAC model but functional for your purpose.  You will take a predetermined  
course back in time.                                                           
                                                                               
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