"Opening the mailbox reveals:
A leaflet.
> read leaflet
Taken.
Welcome to Zork!
Dungeon is a game of adventure, danger, and low cunning. In it
you will explore some of the most amazing territory ever seen by mortal
man. Hardened adventurers have run screaming from the terrors contained
within.
"
Can't believe there 9 of us here crazy enough to playing this right now..