“Asked to leave?” Gristhorpe echoed. “Does that mean fired?”

“Not exactly, sir. He was a partner. You can’t just fire partners. He was also married to the boss’s daughter. Mary Rothwell’s maiden name is Hatchard. He was asked to resign. They didn’t want a fuss.”

“Interesting,” said Gristhorpe. “What was it all about, then?”

Susan ate another mouthful of her Cornish pasty, then washed it down with a sip of Britvic orange and pushed her plate aside. “Laurence Pratt was reluctant to tell me about it,” she said, “but I think he knew he’d be in more trouble if we found out some other way. It seems Rothwell was caught padding the time sheets. It’s not a rare fiddle, according to Pratt. And he doesn’t regard it as strictly illegal, but it is unethical, and it’s bad luck for anyone who gets caught. Rothwell got off lucky.”

“What happened?” asked Gristhorpe.

“This was about five years ago. Rothwell was doing a lot of work for a large company. Pratt wouldn’t tell me who it was, but I don’t think that really matters. The point is that Pratt’s father was looking over the billings and noticed that Rothwell had doubled up on his hours here and there, at times he couldn’t have been working on their account because he’d been on another job, or out of town.”

“What did he do? Isn’t there some regulatory board he should have been reported to?”

“Yes, sir, there is. But, remember, Rothwell was married to Hatchard’s daughter, Mary. They’d been together nearly sixteen years by then, had two kids. Old man Hatchard would hardly want his son-in-law struck off and his family name dragged through the mud, which is probably what would have happened if Rothwell had been reported. I also got the impression that it might have been Mary’s demands that set Rothwell padding his accounts in the first place. Nothing was directly stated, you understand, sir, just hinted. Imagine the headlines: ‘Accountant fired for padding books to keep boss’s daughter in the manner to which she was accustomed.’ Hardly bears thinking about, does it? Anyway, Laurence Pratt and Rothwell were quite close friends then, so Pratt interceded and stuck up for him. Rothwell was lucky. He had a lot going for him. And there’s another reason they didn’t want a hue and cry.”

“Which is?”

“Confidence and confidentiality, sir. If it got out to the large company that Rothwell was fiddling, then it would put the partnership in an awkward position. Much better they don’t find out and Rothwell simply decides to move on. Keep it in the family. They’d never question the bills, or miss the money.”

“I see.” Gristhorpe rubbed his whiskery chin.

“It’s something that could have led to a motive, isn’t it, sir? Greed, dishonesty.”

“Aye,” said Gristhorpe. “It is that. Which makes me think even more that these secret files might prove interesting reading.” He tapped the table-top. “Good work, Susan. Let’s make Rothwell’s business affairs a major line of enquiry. I’ll get in touch with the Fraud Squad. I’ve heard from the antiterrorist squad, by the way, and they’ve come up with nothing so far. They want to be kept up to date, of course, but I think we can rule out Rothwell dealing arms or money to the IRA. Anything to add, Alan?”

“I think we should follow up on the wadding. There could be a porn connection.”

“Rothwell in the porn business?”

“It’s possible. After all, he had plenty of money, didn’t he? He must have got it from somewhere. I’m not suggesting he was a front player, one who got his hands dirty. Maybe he just made some investments or handled finances. Take the lid off that can of worms – video nasties, prostitution and the like – and it wouldn’t surprise me to find murder. Perhaps the wadding was a kind of signature, a symbol.”

“It sounds a bit too fanciful to me,” said Gristhorpe, “but I take your point. It’s all tied together, anyway, isn’t it? If he was in the porn business, then that makes porn part of his business affairs. We’ll follow up on it.”

“DS Hatchley’s coming back on Monday,” said Banks. “I think he’d be a good man for the job. Remember he spent a while working on the Vice Squad for West Yorkshire? Besides, he’d enjoy it.”

Gristhorpe snorted. “I suppose he would. But keep him on a tight leash. He’s like a bloody bull in a china shop.”

Banks grinned. He knew that Gristhorpe and Hatchley didn’t get along. Jim Hatchley was a big, bluff, burly, boozy, roast-beef sort of Yorkshireman, a rugby prop forward until cigarettes and drink took their toll. More at home playing darts in the public bar than chatting in the lounge, he was the kind of person everyone underestimated, and that often worked to the advantage of the Eastvale CID. And he also had a valuable, county-wide network of low-life, quasi-criminal informers that nobody had been able to penetrate.

“The Rothwells are an interesting family,” Banks went on after a sip of Theakston’s. “Mrs. Rothwell assured me everything was fine and dandy on the domestic front, but methought the lady did protest too much. I wonder how much communication there really was between them all. It’s nothing I can put my finger on, but there’s something bothering me. I think the son, Tom, might have something to do with it.”

“I got that impression, too,” said Susan. “It all looks fine on the surface, but I’d like to know what life at Arkbeck Farm was like. After I’d talked to Laurence Pratt, I got to thinking that if Tom was the reason Keith and Mary Rothwell had to get married, and Rothwell was unhappy in his marriage, then he might blame Tom. Irrational, of course, but things happen like that.”

“I’d leave the psychology to Jenny Fuller,” said Gristhorpe.

Susan reddened.

“Susan’s right,” said Banks. “The sooner we find Tom Rothwell, the better.”

Gristhorpe shrugged. “It’s up to the Florida police now. We’ve passed on all the information we’ve got. Come on, Alan, surely you don’t think the wife and daughter had anything to do with it?”

“It would be hard to believe, wouldn’t it? On the other hand, we’ve only their word for what happened. Nobody else saw the two men in black. What if Alison and her mother did want rid of Rothwell for some reason?”

“Next you’ll be telling me the wife and daughter were making porno films for Rothwell. You talked to Alison. You could see the lass was upset.”

“Alison might not have had anything to do with it.”

“You mean Mrs. Rothwell? Wasn’t she in shock?”

“So I’m told. I didn’t get to see her until late this morning. That gave her plenty of time to compose herself, work up an act.”

“But the SOC team went through the place as thoroughly as they usually do, hayloft and all. They couldn’t find any traces of a weapon.”

“I’m not saying she shot him.”

“What then? She hired a couple of killers to do it for her?”

“I don’t know. She could certainly afford it. I suppose I’m playing devil’s advocate, trying to look at it from all angles. I still maintain they’re an odd family. Alison was genuinely terrified, I know that. But there’s something not quite right about them all, and I’d like to know what that is. I knew when I drove away from Arkbeck Farm that something I’d seen there was bothering me, nagging away, but I didn’t know what it was until a short while ago.”

“And?” asked Gristhorpe.

“It was Tom’s postcard from California. It was addressed to Alison – he called her Ali – and at the end he wrote, ‘Love to Mum.’ There was no mention of his father.”

“Hmm,” said Gristhorpe. “It doesn’t have to mean anything.”

“Maybe not. But that’s not all. When I looked through Rothwell’s wallet a while back, I found photos of Mary and Alison, but none of Tom. Not one.”