So that is how they play this game, I thought, maudlin with self-pity. You run and dodge and improvise and finally reach the desired sanctuary, only … - Robert Sheckley

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So that is how they play this game, I thought, maudlin with self-pity. You run and dodge and improvise and finally reach the desired sanctuary, only to find that the rules have been changed and the sanctuary has become the enemy stronghold and that you have actually lost.
But of course, I had forgotten: this game had no rules.