ZORK I: The Great Underground Empire                                           
Copyright (c) 1981, 1982, 1983 Infocom, Inc. All rights reserved.              
ZORK is a registered trademark of Infocom, Inc.                                
Revision 88 / Serial number 840726                                             
                                                                               
West of House                                                                  
You are standing in an open field west of a white house, with a boarded front  
door.                                                                          
There is a small mailbox here.                                                 
                                                                               
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