‘That’s right,’ said Hemingway. ‘You stop giving me lip, and think it over. Whichever way you turn in this case, you come up against Joseph. You must have noticed it. Take the party itself! Whose bright idea was that? You can ask any of the people up at the Manor, and they’ll all give you the same answer: Joseph! I never met the late Nathaniel when he was alive, but I’ve heard enough about him to be pretty sure he wasn’t the kind of man who liked Christmas parties. No, it was kind old Uncle Joseph who thought it would be nice to have a real old-fashioned Christmas, with a lot of goodwill floating around, and everyone making up old quarrels, and living happily ever after. Young Stephen wasn’t on good terms with Nathaniel, on account of his bit of fluff; Paula had been worrying the life out of him to put up the cash for Roydon’s play; Mottisfont had been getting his goat by selling arms to China, in a highly illegal fashion. So Joseph gets the bright idea of asking all three of them, plus two of the causes of the trouble, down to Lexham. You can say he was being well-meaning but tactless, if you like; on the other hand, you can widen your horizon a bit, and ask yourself if he wasn’t perhaps getting together all the people most likely to quarrel with Nathaniel, to act as cover for himself.’

‘Why, sir, he’s nothing but a soft old fool!’ protested the Sergeant ‘I’ve met his sort many times!’

‘That’s what he wanted you to think,’ said Hemingway. ‘What you’re forgetting is that he’s been an actor. Now, I know a bit about the stage. In fact, I know a lot about it. Joseph can tell me all he likes about playing Hamlet, and Othello, and Romeo: I don’t believe him, and, what’s more, I never did. He’s got Character-part written all over him. He was the poor old father who couldn’t pay the rent in The Wicked Baron, or What Happened to Girls in the ’Eighties; he was the butler in about half a hundred comedies; he was the First Grave-digger in Hamlet; he was –’

‘All right, I get it!’ the Sergeant said hurriedly.

‘And if I’m not much mistaken,’ pursued Hemingway, ‘his most successful rôle was that of the kind old uncle in a melodrama entitled Christmas at Lexham Manor, or Who Killed Nat Herriard? I’m bound to say it’s a most talented performance.’

‘I don’t see how you make that out, sir, really I don’t! If he’d got his brother to make a will leaving everything to him, there might be some grounds for suspecting him. But he didn’t: he got him to leave his money to Stephen Herriard.’

‘That’s where he was cleverer than what you seem to be, my lad. In spite of having started life in a solicitor’s office, he forgot the little formality of providing witnesses to see that will signed. You don’t need to know much about law to know you’ve got to have the signature to a will properly witnessed. You heard Miss Herriard telling me that he also forgot to put in some clause or other. What she meant was an Attestation Clause. That meant that the witnesses to the will would have to swear to Nathaniel’s having signed it in their presence before it was admitted to probate. So if Stephen didn’t get convicted of the murder, Joseph had still got a trump-card up his sleeve. In due course, by which I mean when the case had been nicely packed up one way or another, it would transpire that the will wasn’t in order after all.’