THE SACK WHICH CLANKED The sand which had been a rich ochre turned to creamy white, the sea from blue became a livid green, the grass upon the sand-hills blackened and bowed down beneath a sudden gust of wind.

The change was instantaneous, as it seemed to me.

I had observed that clouds were gathering upon the mountain peaks inland, but I had been riding in hot sunlight, only a little less intense than it had been at noon, when suddenly the chill and shadow struck me.

Then I saw the sky completely overcast with a huge purple cloud which bellied down upon the land and sea.

The waves which had been lisping all day long gave forth an ominous dull roar.