""I wonder if larks get vertigo?"" said Eric, squinting up at the clear summer sky. His left foot struck a large stone in the middle of the path. ""What's vertigo?"" asked Freda, trudging along by his side. ""It's a sort of dizziness you get when you think you're going to fall,"" said the Furrit, picking himself up, brushing the dust off his fur and wishing the trees and hedgerows would stop spinning around... And that's how it all begins. Eric and Freda are Furrits - small, stout, self-deluded animals who are convinced they're right and the rest of the world is out of step. But they are...