Whatever the source is, it's pushing out nearly fifty milliSieverts an hour.'
Jenny felt as if the room had been suddenly shaken by an unexpected tremor. Radiation? She was baffled.
'I don't understand the measurements,' she said, 'What does it mean?'
'Put it this way,' Andy Kerr said, 'background radiation is two milliSieverts per year. Five hundred milliSieverts is usually considered very bad for your health. We're not talking sudden death, but we are talking dangerous levels.'
'Where could it have come from?'
'No idea. I've got someone from radiology on the way. I'm hoping she might come up with some answers. I thought you might want to be here.'
'Have you told the police?'
'Shouldn't we get the facts straight first?'
'I'll be right down.'
Jenny promised she'd only be an hour or two, but Ross said wearily that he'd learned to multiply her time estimates by three. Forget going out, he'd rather be dropped in Bristol, where he could meet up with friends.
He told her to let him out near Bristol docks. She watched him saunter off towards the coffee shops and bars where she suspected he and his friends liked to mingle. Seventy-five weekends until he was gone. How many of those would they spend together? A handful if she was lucky.
She tried McAvoy's mobile number twice during the fifteen-minute drive to the Vale hospital. Each time she reached his answerphone, and each time she froze when it came to leaving a message. She could no longer deny that in a deeply confusing and incomplete way she was attracted to him, but it wasn't shyness that stopped her, it was a vague and unsettling sense that whatever awaited her would be complicated enough without his unpredictable presence. And, if she were brutally honest with herself, she remained suspicious. There was still something about him, the bit that by his own admission remained wholly unredeemed, that she didn't trust.
A stiff female figure swaddled in an anorak and gloves was waiting outside the mortuary entrance. It was Alison. Jenny could sense her mood of martyred disapproval at twenty yards.
'Good morning, Alison.'
'On your own, are you, Mrs Cooper?' she replied sharply.
'Yes.'
'I was half-expecting you to be with Mr McAvoy - as you and he seem to have become so friendly.'
'I know you've got a history, but I think he may have helped me make a breakthrough. I tracked down the man who was driving the Toyota, the one who paid Madog a visit. Have you managed to take his statement yet?'
'Yes,' Alison said curtly. 'But helpful or not, I've known you long enough to say this, Mrs Cooper - that man's using his charm to get the better of you. He's got mischief in mind, I know it.'
Jenny could have pointed out that Alison was hardly objective when it came to her good-looking former boss or her confidant and baptismal sponsor, DI Dave Pironi, but her more humane instincts told her to hold back. This was her officer's way of saying that she was concerned, and Jenny appreciated it. Now didn't feel like a good time to have to manage without her.
'I'm under no illusions,' Jenny said. 'The next time I see him will be in court. That's a promise.' She pushed the buzzer.
Andy Kerr came along the corridor to meet them, dressed in a radiographer's apron, surgical mask and cap.
'I can't let you go any further,' he said, holding up his hands. 'We've found hazardous levels. Sonia's got some kit up there that should help identify the source. Undertakers are on the way with a lead-lined coffin.'
Jenny craned past him to see a young woman dressed in a similar outfit to his. She was kneeling on the floor tapping on a laptop. It was hooked up to some equipment housed in boxes that resembled photographer's cases.
'Could she have been poisoned?' Jenny said.
Andy said, 'Come through here. It's one room which isn't giving a reading.' He pushed through the swing doors into the empty autopsy room. Jenny and Alison followed.
Andy pulled off his mask and ripped at the Velcro tabs on his apron. The beach club T-shirt he was wearing underneath was soaked through with sweat. 'Sonia says she's found radioactive particles on the surface of the skin. They're beta emitters, which starts to narrow it down. She also found a particle in the nasal passage. It's early days, but her initial impression was that Mrs Jamal has been in an environment where she's come into contact with a radioactive substance.'
'Such as?' Alison asked.
'There are some medical and commercial applications for these radionuclides - iodine 129 is used to treat thyroid complaints - but it's more likely she's been exposed to low- or medium-level nuclear waste.'
Jenny said, 'How likely is that?'
'Beats me,' Andy said. He pulled his dosimeter from his pocket - a small yellow gadget about the size of a pager - and switched it on. He waved it in Jenny and Alison's direction and checked the digital readout. 'You're both clear.'
Sonia Cane was a Ghanaian woman who wore a permanent frown. Having finished her work at the fridge she scrubbed down in the autopsy room while reeling off a list of urgent tasks. The Health Protection Agency would have to be informed immediately. Their radiation team would oversee the clean-up of the mortuary and the storage and eventual disposal of the body. Until the building was clear of contamination it would be sealed off and no bodies would be allowed to come or go. The levels of radiation were high enough to make this a significant incident.
'Do you have any idea where this came from?' Jenny asked her.
'No, but I can tell you what the substance is. There'll be more detailed tests, but I'm pretty certain it's caesium 137. Tiny amounts - no more than specks of dust - but from a potent source.'
'What's that when it's at home?' Alison said, saving Jenny from revealing her ignorance.
'A by-product of the nuclear industry,' Sonia said. 'It results directly from the fission of uranium. You'd also find it where there'd been a nuclear explosion — '
Jenny interrupted, 'This woman worked in a clothes shop.'
Sonia said, 'I find it as puzzling as you ... If she worked at a nuclear power plant you could understand it.' At a loss, she shook her head. 'You read about terrorists trying to get hold of this stuff to make dirty bombs. It doesn't make any sense.'
'Do you know when she was contaminated?' Andy said.
'Very recently - the particle in the nose can't have been lodged there for more than a few days, even hours before death. The natural processes would have expelled it.'
'And this contamination was on her skin, right?' Jenny said. 'Her body was found naked.'
'I'm not sufficiently expert to tell you whether or not she was clothed or not when she was exposed,' Sonia said. 'We'd have to bring in specialists.'
Jenny's mind raced through a number of equally baffling possibilities. None of them seemed credible. All of them pointed to Amira Jamal having a far more complex connection with her son's disappearance than Jenny could ever have imagined.
'We'd better inform the police,' Alison said.
Andy reached for the phone on the wall.
Jenny stopped him. 'Hold on. I'd like to go to her flat first. It's only a few minutes away.'
Sonia said, 'This is a radiological incident. We're under a legal duty—'
'I know. But let's find out how big the incident is first, shall we? Could you come with us?'
Sonia and Andy traded an uncertain glance.
'He can make the call in half an hour. Meanwhile I'm gathering evidence for my inquest into her son's death - I'll explain on the way. Bring whatever you need to take measurements, but we'll have to be quick.'
Alison held fire until they were marching back out across the car park. Sonia, following behind, was on the phone offloading the day's domestic duties to an evidently disgruntled husband.
