Publisher's blurb: Why roll a d100 for just a yes or no—two possible answers? Put the 100 into d100!™ Example of using Gamemaster Surrogate. Is there something behind the door? (knowable, important, relavent, & timely to the gamestory) [Roll d100 = 72. Look up #72] 72. Certainly. It is or happens unquestionable or without a doubt. By all means necessary, surely it is so. There is something behind the door that will alter the game and story.