“I have heard of those little scratches in the crust that you Topdwellers call mines. But that’s where you get dead gold, dead silver, dead gems. Down in Bism we have them alive and growing. There I’ll pick you bunches of rubies that you can eat and squeeze you a cupful of diamond juice. You won’t care much about fingering the cold, dead treasures of your shallow mines after you have tasted the live ones in Bism.”