Mrs. Pop Eye held a blue parasol to shade herself from the sun. It was the only parasol in the whole island, so we heard. We didn't ask after all the black umbrellas we saw, let alone the question: what was the difference between these black umbrellas and the parasol? And not because we cared if we look dumb, but because if you went too far with a question like that one, it could turn a rare thing into a commonplace thing.