Cat's Paw

What if the doom of the universe -- or its salvation -- didn't depend on humans?What if cats were far more than we imagine?What if-But enough of this: At the end of the universe there is a Mountain. Every thousand years, a bird flies to strop its beak on that mountain. When the mountain is worn to nothing the universe ends.The mountain is down to a few grains of sand.The only hope of survival for the entire universe rests in the grubby paws of an alcoholic alley cat, a fluffy cat with not much brainand a bookish cat who thinks Guinevere is a male hero's name.The universe might have run out of luck.Or not.