‘I’ve heard it all day,’ said my companion. ‘While you slept this afternoon it came all round the island. I hunted it down, but could never get near enough to see – to localise it correctly. Sometimes it was overhead, and sometimes it seemed under the water. Once or twice, too, I could have sworn it was not outside at all, but within myself – you know – the way a sound in the fourth dimension is supposed to come.’
