“Except we’re not talking about washing, Ms. Burns, we’re talking about bleaching…and all the literature says bleach destroys DNA.”

“Really?” I murmured. “I didn’t know that.”

“Why did Ms. Derbyshire do the same thing? Why did she leave your dressing-gown in a bleach solution in the bath? Was it your suggestion? Did you take the bleach to her after you’d finished in the kitchen?”

I dropped my chin onto my clasped hands. “It’s ‘No’ to the last two questions, and ‘That’s what women do’ to the first two. Every woman in the world has a problem with bloodstains on her clothes. You should watch African girls spending hours at the rivers, hammering away with stones to get rid of them. We’re all programmed to do the same thing…never mind our cultures. Do you have a wife? Ask her.”

“Did you take the bleach upstairs, Ms. Burns?” he repeated.

“I’ve already said I didn’t. There was a bottle of Domestos beside the lavatory in the bathroom. Look”-I paused, wondering if it was wise to continue-“you must see how ridiculous this line of questioning is.” What the hell! I was exhausted. “Peter wasn’t away more than twenty minutes…and the police and ambulance arrived shortly after he returned. How could Jess and I kill MacKenzie and get rid of his body in that short time?”

“You couldn’t.”

“Then why keep implying we were in some sort of conspiracy? Has Jess told you a different story?”

“No. Her account matches yours. MacKenzie was still tied up when she went for a bath, and she only learnt he’d gone when Dr. Coleman started shouting in the hall.”

POOR PETER. He became intimately acquainted with panic that night. His first idea when he found the front door wide open, and no MacKenzie on the floor, was that he was about to be jumped again. His second was that Jess and I were probably dead. His third-not very sensible in view of the first two, as they suggested MacKenzie was hovering around with the axe-was to start hollering for us.

His voice was high-pitched and uneven, and I heard it in the kitchen. “Connie! Jess! Where are you? Are you all right?”

I called back that I was in the kitchen, but when it became obvious that he hadn’t heard me, I dried my hands and went down the corridor. Peter described me as behaving “with extraordinary calm.” Indeed, I was so relaxed that when I urged him “to get a grip,” he came to the strange decision that Jess and I had moved MacKenzie somewhere else.

“But you hadn’t?”

“Of course not. Peter told me to leave him where he was until the ambulance arrived. How could we have moved him, anyway, without releasing his feet? We couldn’t have carried him.”

“Two of you might have been able to.”

“Where to?” I asked reasonably. “You’ve searched the house three times, and he’s not here. And you’ve tracked every one of our footprints.”

“Those we can find. Blood dries quicker than you think, Ms. Burns. We’ve found your outward tracks through the kitchen when you went for Ms. Derbyshire’s clothes, but there’s nothing to show you returned.”

“Except that I must have done since she was wearing them by the time the first police car arrived.”

I think he found my composure as frustrating as Peter had done. They both felt that hand-wringing and breast-beating suited the mood better than hard-headed analysis. Peter lost it completely in the middle of the hall when he asked me what I’d done with MacKenzie. He even accused Jess and me of “doing something awful” since MacKenzie couldn’t have freed himself without assistance.

“And did you, Ms. Burns?”

“No.”

“Then how did he free himself?”

“I don’t know. At a guess, he used Jess’s Leatherman. She said he took it off her. If it was in his trouser pocket, he might have been able to move his arms enough to wriggle it out.”

“Hard to pull out a blade with broken fingers.”

“He had quite an incentive,” I said dryly. “He was about to be arrested.”

Bagley studied me for a moment. “Why weren’t you as worried as Dr. Coleman when you saw that MacKenzie was missing? He could have been anywhere…upstairs with Ms. Derbyshire for example.”

“Jess arrived on the landing about the same time as I came into the hall…and Peter’s voice was so far up the register that most of what he said was incomprehensible. I’m not sure I even realized MacKenzie was missing until Peter started to calm down…and then we heard the sirens. It was all very quick.”

“You’re an observant woman, Ms. Burns. You must have noticed the floor was empty.”

“I was looking at Peter.”

But Bagley couldn’t accept that. “As soon as you realized Dr. Coleman was frightened, you’d have checked on MacKenzie as a matter of priority.”

I shrugged. “This would be a lot easier if Peter hadn’t given you such an inflated opinion of me. You seem to think I have an immediate grasp of what’s going on in any situation. Well, I don’t. I may have seen Bertie out of the corner of my eye-a shape-and assumed it was MacKenzie…although I don’t remember doing it, and I don’t remember thinking about it.” I tugged a cigarette out of my pocket and lit it with relief. “Just out of interest, why isn’t Peter being put through the third degree? He’s far more likely to have freed MacKenzie than Jess or I.”

“What makes you say that?”

“Because he was worried about MacKenzie’s hands. Perhaps he decided to loosen the duct tape when he came back in.”

“I don’t think so.”

I absorbed as much nicotine in one shot as I could, then blew the smoke in Bagley’s direction. “Is that a bloke thing, Inspector? The fact that you’re willing to believe a man, but not a woman?”

He took it in good part. “Ms. Derbyshire heard Dr. Coleman’s car come back. She says there was a few seconds’ time lapse between that and his shouting. I haven’t ruled out that he did what you suggest but it seems unlikely. He didn’t have a knife on him when we searched him, and he’d have needed one to cut through the duct tape.”

“Perhaps MacKenzie took it off him.”

“Did Dr. Coleman look as if he’d been in a fight?”

“No…but if he had any sense he’d have relinquished the knife and run out the front door before he got slashed with it.”

“Leaving MacKenzie to collect his bag and disappear through the office window? Is that what you’re saying happened?”

“Why not? It’s what you’re suggesting Jess and I did, isn’t it?”

“We think he left through the front door…and, from the impressions on the floor, he appears to have been on bare feet.” Bagley smiled slightly. “We have a lot of bare feet, Ms. Burns. It’s quite confusing.”

“All different sizes…and with different toeprints.”

“Prints don’t register well on stone. There was a lot of skating done through the blood. It’s hard to say who went where when.”

“Only in the hall. Have you found MacKenzie’s prints anywhere else?”

He wasn’t going to answer my questions. “One line we’re pursuing is that he managed to ease his shoes off in order to slip out of the duct tape round his ankles. You told us you wrapped the tape round the bottom of his trousers. Do you recall how many turns you made and whether he was wearing socks?”

I thought back. “Not really. About four, perhaps. I just wound it till it seemed tight enough. I don’t remember seeing socks.”

“What sort of trousers were they?”

“Denims.”

“Do you remember Dr. Coleman undoing the fly to help him breathe?”

I nodded.

“So all MacKenzie had to do was slide out of the trousers to free himself?”

I saw criticism immediately. “I’m damned if I’ll take the blame for that,” I said indignantly. “It wasn’t me who unbuttoned his stupid trousers. Blame Peter. He could have worked it out just as well as I could.”

“I’m not blaming you, Ms. Burns, I’m pointing out what might have happened. Did you bind his hands in the same way? Was the duct tape over his cuffs or against his skin?”