"No thank you, my dear. I don't smoke. You must wonder why I've come? To tell you the truth I was feeling rather conscience-stricken. I promised Cora to come and see her, some weeks ago. I usually called upon her once a year, and just lately she'd taken up the hobby of buying pictures at local sales, and wanted me to look at some of them. My profession is that of art critic, you know. Of course most of Cora's purchases were horrible daubs, but take it all in all, it isn't such a bad speculation. Pictures go for next to nothing at these country sales and the frames alone are worth more than you, pay for the picture. Naturally any important sale is attended by dealers and one isn't likely to get hold of masterpieces. But only the other day, a small Cuyp was knocked down for a few pounds at a farmhouse sale. The history of it was quite, interesting. It had been given to an old nurse by the family she had served faithfully for many years - they had no idea of it's value. Old nurse gave it to farmer nephew who liked the horse in it but thought it was a dirty old thing! Yes, yes, these things sometimes happen, and Cora was convinced that she had an eye for pictures. She hadn't, of course. Wanted me to come and look at a Rembrandt she had picked the last year. A Rembrandt! Not even a respectable copy of one! But she had got hold of a quite nice Bartolozzi engraving - damp spotted unfortunately. I sold it for her for thirty pounds and of course that spurred her on. She wrote to me with great gusto about an Italian Primitive she had bought at some sale and I promised I'd come along and see it."

"That's it over there, I expect," said Susan, gesturing to the wall behind him.

Mr Guthrie got up, put on a pair of spectacles, and went over to study the picture.

"Poor dear Cora," he said at last.

"There are a lot more," said Susan.

Mr Guthrie proceeded to a leisurely inspection of the art treasures acquired by the hopeful Mrs Lansquenet. Occasionally he said, "Tchk, Tchk," occasionally he sighed.

Finally he removed his spectacles.

"Dirt," he said, "is a wonderful thing, Mrs Banks! It gives a patina of romance to the most horrible examples of the painter's art. I'm afraid that Bartolozzi was beginner's luck. Poor Cora. Still it gave her an interest in life. I am really thankful that I did not have to disillusion her."

"There are some pictures in, the dining-room," said Susan, "but I think they are all her husband's work."

Mr Guthrie shuddered slightly and held up a protesting hand.