What sang? Grant asked, interrupting the dissection of comparative bliss.

It was a moot point, Mr Tallisker said. Indeed, you could have it either way. He had walked them himself. Endless miles of pure white sand by a brilliant sea. They did ‘sing’ as one trod on them, but he himself held that ‘squeak’ would be a better description. On the other hand on any day that provided a steady wind—and such days were of no unusual occurrence in the Islands—the fine, almost invisible, surface sand was swept along the wide beaches so that they did in fact ‘sing’.

From sand Grant led him to seals (the Islands were full of seal stories, it seemed; the translation of seals into men and vice versa; if they were to be believed half the population of the Islands had some seal blood in them) and from seals to walking stones, and on all Mr Tallisker was interesting and informative. But on streams he fell down. Streams seemed to be the only things on Cladda that were exactly like their counterpart anywhere else. Except that they too often spread into little lochs or lost themselves in bog, the streams of Cladda were just streams; water in the process of finding its own level.

Well, thought Grant, going away to meet Tommy for lunch, that in a way was ‘standing’. Running into standing water; into bog. B Seven might have used the word because he needed the rhyme. He had wanted something to rhyme with sand.

He listened with only half an ear to the talk of the two fellow sheep-farmers that Tommy brought to lunch, and envied them their untroubled eyes and their air of unlimited leisure. Nothing hounded these large rangé creatures. Their flocks were decimated every now and then by strokes of fate; great snowstorms or swift disease. But they themselves stayed quiet and sane, like the hills that bred them. Big slow men, full of little jokes and pleased with small things. Grant was very conscious that his obsession with B Seven was an unreasonable thing; abnormal; that it was part of his illness. That in his sober mind he would not have thought a second time about B Seven. He resented his obsession and clung to it. It was at once his bane and his refuge.

But he drove home with Tommy even more cheerful than when he had set out. There was practically nothing about the inquest on Charles Martin, French mechanic, that he did not now know. He was that much to the good. And that was a lot.

After supper that night he discarded the book on European politics which had shared with Tommy’s telephone his interest on the previous evening and went hunting along the bookshelves for something about the Islands.

‘Are you looking for anything in particular, Alan?’ Laura asked, looking up from The Times.

‘I’m looking for something about the Islands.’

‘The Hebrides?’