'Sounds like a nifty bit of programming,' I said.

'Our software was written by my brother-in-law, so he had to make sure it does what it's supposed to, or I'd make his life hell,' Rachel said. I could imagine. One of the things I learned in law school was, never cross a Jewish princess.

'Now for the hard question,' I said.

'I can guess. Who has access to the computers?' she asked. I nodded. 'Is this really necessary?' I nodded again. 'And I suppose you won't be satisfied if I tell you that they're only accessible to members of my staff?' I began to feel like I was following the bouncing ball.

'You want names, do you?' she said.

'Photographs would be even better,' I said.

Her eyebrows arched, then she snorted with laughter. 'Have you ever considered a career in estate agency? With cheek like yours, you could stand in the middle of a decaying slum with rising damp, dry rot and subsidence and persuade the clients that the property has unique potential that only they are capable of exploiting.'

'Kind of you, but I prefer catching crooks to becoming one,' I said.

'It’s flattery that’s supposed to get results, not insults,' she retorted. 'All the same, would you mind terribly keeping an eye on the shop while I attempt to meet your demands?'

I even went so far as to sit behind the desk while Rachel disappeared into the back office. I suppose she could have been phoning the baddies to tip them off, but I didn't think so. Luckily, no one came in during the few minutes she was gone. Thursday morning obviously isn't the busy time for estate agents. Rachel returned with an envelope of photographs. 'Here we are,' she said. 'We had a staff Christmas dinner last year. The only person who's new since then is Jason, and you've already met him.'

Rachel handed me the bundle of snaps. They'd celebrated in one of the Greek tavernas, and the pictures had obviously been put back in reverse order, for the first few showed one of those organized riots that the Greeks, like the Scots, call dancing. There was no one that I recognized. I carried on. Then, on the seventh photograph, shot from the opposite end of the table, there she was. Small, neat features, sharp chin, face wider across the red eyes. Just like Diane Shipley's sketch, except that her natural hair was dark blonde, cut short in a feathered, elfin style. I pointed to the woman. 'Who's that?'

Rachel's face seemed to close down on me. 'Why? What makes you ask?'

'I don't think you want me to answer that,' I said gently. 'Who is she?'

'Her name is Liz Lawrence. She works two afternoons a week in our Warrington office. She has done for nearly three years. I think you must be making a mistake, Miss Brannigan. She's… she's a nice woman. She works hard,' Rachel insisted.

I sighed. Sometimes this job makes me feel like the bad fairy who tells children there's no Santa Claus. The worst of it was that I had another sackload of disillusion to dump on someone before the day was over.

Ted's suit was having yet another outing. When I got back to the office, he was perched on the edge of Shelley's desk, looking as cheerful as a bloodhound whose quarry has just disappeared into the river. 'And you know what garages are,' I heard him say as I came in. They don't know when they'll have either van back on the road.'

'More problems?' I asked.

'You're not kidding. Two of my three vans are off the road.

Which means my installations have slowed right down. It's a disaster,” Ted said mournfully.

'Are you sure it's just a coincidence?' Shelley demanded. 'On top of everything else, it's beginning to sound as if somebody's got it in for you!'

Ted managed to look both wounded and baffled. 'I don't think so, Shelley, love,' he said. 'It's just been bad luck. I mean, the first one was parked up when it happened. Somebody'd obviously smacked into it in the pub car park while Jack was busy inside.'

“Jack McCafferty? What was he doing with one of the vans? Surely he's got nothing to do with installations?' I asked, too sharply. They both gave me odd looks.

'He borrows it now and again. He runs a little disco business with his brother-in-law, and sometimes they're double booked so he borrows one of my vans overnight to run the disco gear around in,' Ted said. The final piece slotted into place.

Then I remembered what kind of vans Colonial Conservatories use. My stomach felt like I'd eaten too much ice cream too fast. 'What night was it that he had the accident, Ted?' I asked.

Ted frowned and cast his eyes upwards. 'Let me see… It must have been Monday night. Yes, Monday. Because we were running round like lunatics Tuesday trying to fit everything in, and that's why Pete was going too fast to stop at the roundabout. And now we're two vans down, and no sign of either of them back till next week at the very earliest.' Out of the corner of my eye, I noticed a flicker of movement as Shelley's hand sneaked out to pat Ted's.

Oh well, at least it hadn't been Ted's white Transit van that had tried to push me off Barton Bridge. 'I wish I had some good news for you, Ted,' I said, 'but I'm afraid it's a bit mixed. We're not due at the bank for another half-hour yet. D'you want to come into my office and I'll run it past you before we go and see Prudhoe?'

I thought I wasn't going to be able to get Ted to the bank. When I unfolded the tale of Jack's treachery, he went white round the mouth and headed for the door. Luckily, the sight of Shelley's astonished face slowed him down long enough for me to grab his arm and steer him into a seat. Shelley got a medicinal brandy into him and he recovered the power of speech. 'I'll kill the bastard,” he ground out between clenched jaws. 'I swear to God, I'll kill him.'

'Don't be silly,' Shelley said briskly. 'Kate will have him put in prison and that's much more satisfying,' she added. Taking me to one side while Ted stared into the bottom of his empty glass, she muttered, "Which bastard are we talking about here?'

I gave her the last five seconds of the tale, which was enough to get her crouching beside Ted, murmuring the kind of comfort that it's embarrassing to witness. Of course, that was when Detective Chief Inspector Delia Prentice chose to put in an appearance. I immediately steered her towards the door and said, 'Ted, I'll see you downstairs in five minutes.'

I'd rung Delia as soon as Shelley gave me a time for the meeting with Prudhoe. I figured it would save me a bit of time if I outlined the case to her at the same time as I told the bank. I knew that the bank might be less than thrilled, but frankly, they were just going to have to lump it. I still had to find enough proof to nail Brian Lomax, and I simply didn't have the time to go into a ritual dance with Ted Barlow's bank manager about ethics.

Leonard Prudhoe was just as I'd expected. Smooth, supercilious, but above all, grey. From his silver hair to his shiny grey loafers, he was a symphony in the key of John Major. The only splash of colour was the angry purple zit on his neck. God knows how it had the temerity to sit there. Also, as I'd expected, he treated us like a pair of naughty children who've been reported to the head so they can learn how the grown-ups behave. 'Now, Miss Brannigan, I believe you think you might have some information pertinent to Mr. Barlow's current problems. But what I really can't understand is why you feel it necessary to have Chief Inspector Prentice present, charming as it is to make her acquaintance. I'm sure she's not in the least concerned with our little difficulties…'

I cut across the patronizing bullshit. 'As far as I'm concerned, a crime has been committed and that's more important than your sensibilities, I'm afraid. How much do you know about fraud, Mr. Prudhoe? Am I going to lose you three sentences in? Because if you're not well versed in major fraud inquiries, I suggest we get someone in here who is. I'm a very busy woman, and I haven't the time to go through this twice, which is why DO Prentice is here,' I said briskly. He couldn't have looked more shocked if I'd jumped on the desk and gone into a kissagram routine.