'Who told him that?' Horton asked sharply. That certainly wasn't what Angela Northwood had said and though Dr Clayton had said Irene had clogged lungs and arteries, death hadn't been imminent.
As if he'd never spoken, Lee said, 'Peter thought that now might be the time to put his plan into action.'
'I bet he did,' Horton muttered, 'with a little prompting from you.'
'On the twenty-first of December Peter asked to see the governor. He told Geoff Welton that he knew someone the police would dearly love to get their hands on and he was prepared to tell them who it was in return for a new identity, money and a fresh start overseas. Geoff Welton had been primed that this might happen one day. He contacted us immediately. We arranged, through Mr Welton, a visitor to talk to Ebury in the governor's office where Ebury was brought after trashing his cell. There we did a deal with Ebury, but he wasn't going to tell us Zeus's identity until we had given him a new identity and a fresh start overseas.'
Would they have gone so far as letting out a man convicted of murder? wondered Horton. He reckoned so. 'You strung Ebury along.'
Sawyer answered. 'For a while, yes. We told him we were arranging it and we put a surveillance operation on his mother and DC Butler into the home.'
Then the light dawned on Horton. He tensed with anger and swivelled his hard gaze between them. 'Then you let the word out that Peter was ready to talk. Just so you could see who showed up at the nursing home, only when he did, you cocked it up. You missed him. Where was your precious DC Butler? On the day shift, I guess. And you had no one on night duty except you, Inspector Lee, and waxed-jacket over there.'
Silence. Horton knew that these two were never going to admit failure. He felt angry for Irene Ebury. She hadn't deserved to be used as bait. He knew the stakes were high and that to catch scum you had to think and sometimes act like scum, but Inspector Lee had fallen down on her job. And he could see that she knew it.
Stiffly Horton continued. 'When the staff were drinking to celebrate New Year's Eve, one of Zeus's operatives entered the Rest Haven from the back gardens on to the flat-roof kitchen extension and in through the landing window, the only one in the house that isn't double-glazed. Then all he had to do was climb the remaining stairs, dart into Irene's room and kill her.'
'There's no evidence of that,' Lee snapped. 'Irene Ebury died of natural causes.'
'Like Peter Ebury, supposedly,' scoffed Horton. 'She could have been injected with air, or she awoke and was frightened to death. Maybe Mrs Kingsway really did see someone, and her son used it as a reason to disguise his own bullying of his frail elderly mother.'
It also meant that the intruder had known the layout of the Rest Haven and where Irene Ebury had slept so he must have visited there, perhaps posing as a workman or relative. On New Year's Eve he had taken advantage of the fact that the staff would be drinking to slip in and kill Irene.
'Did you know about the prescription fraud?' he asked and saw that they did. 'You thought Daniel Collins was involved in that, and that his death was just an unfortunate accident until his mother refused to believe it. Then you wondered if he had been Zeus's eyes and ears all the time. The surveillance had been called off, but by working with me, Inspector Lee, you could follow up that lead. Well, Daniel Collins was killed by Steven Kingsway.' And he told them of Kingsway's confession. Neither Lee nor Sawyer showed any emotion or reaction. He finished by asking who had stolen Irene's belongings.
Inspector Lee answered. 'There was nothing in them. DC Butler had already been through them, but we didn't take them.'
So Irene's killer had probably seen how lax Marion Keynes was in keeping her office locked, or he'd managed to take impressions of the keys to the basement.
'And there was no photograph or mention of your mother,' Sawyer said.
Horton tensed. He wondered how long they had known about Irene's link with his mother. He wasn't going to ask though and give them the satisfaction of seeing his curiosity. He also wondered if Sawyer was telling the truth. He wouldn't put it past him to lie.
Coldly he said, 'You told Peter Ebury about his mother's death on New Year's Day. He knew he was next. He was relying on you to get him out, but again you were too late.'
And Sawyer didn't much like him saying that. Well, tough. Horton guessed that Sawyer had taken Peter Ebury's belongings from the prison and had left only those two photographs, which he had deemed to have no significance, and no chance of leading Horton to Zeus.
'Have you found the social worker who helped Irene to move?' he asked. 'Naomi Bennett.'
Lee threw a glance at Sawyer, who nodded. 'She says Irene took what few letters and photographs she had with her. The rest of her furniture went to a second-hand dealer.'
He didn't believe it. 'How did Peter find out who his father was?'
Sawyer said, 'He says his mother finally told him.'
Maybe she did, Horton thought, but he couldn't believe a word these two told him. 'Haven't you traced Irene's whereabouts during those missing years – 1963 to 1973?'
Surely that would reveal Zeus's identity. Maybe it had, but the Intelligence Directorate, and whatever other agency they were working in co-operation with, didn't have enough evidence to bring him in and certainly not to convict him.
'We're working on it.' Sawyer smiled, but his eyes were as hard as marbles.
'So what happens now?'
'We carry on. And you can help. We know that Irene Ebury worked with your mother in the casino and that your mother disappeared in November 1978. Zeus could be responsible for that.'
'I doubt that. Irene knew this man before then. She returned to Portsmouth when she was pregnant with Peter.'
'She could still have confided in Jennifer.'
She could have done, but Horton fervently hoped not. Now he knew the reason why Inspector Lee had been assigned to his team and DCI Bliss seconded elsewhere. When Lee had seen him arrive at the Rest Haven, and when word had got back to Sawyer that he had been to the prison enquiring about Peter Ebury's death, Sawyer thought that Horton might lead him to Zeus, or at the least uncover some fresh information. Bliss had wanted him to drop the case, but Sawyer didn't and he needed someone on the inside. Horton wondered how much Superintendent Reine and Uckfield had been told.
Sawyer continued, confirming Horton's thoughts. 'The fact that your mother disappeared makes us think she knew something about Zeus. If he knows that you're alive and making inquiries, then you might help flush him out.'
Horton laughed mirthlessly. 'And be killed in the process? No, thanks.'
Sawyer remained silent. Horton stared across the marina. He knew what was being left unspoken, which was if he helped then he might discover what had really happened to his mother on that November day in 1978. If this Zeus was ruthless enough to kill, or have someone kill Irene and her son, Peter, and no doubt many others, then Horton knew he wouldn't think twice about threatening to kill him and even killing Emma. His stomach tightened. The world felt bleak and hostile.
Sawyer said, 'You would be posted to our team as a DCI.'
Horton's eyes swivelled to Lee. He didn't think she'd like that much, but again her expression gave nothing away. He turned back to face Sawyer. First Uckfield had promised him acting DCI on his team and now this. But Uckfield had made promises before and hadn't kept them and Uckfield's promise came with the condition that he give up fighting for regular access to Emma. Now Sawyer was offering him a higher prize and his conditions meant he could lose his life and possibly Emma's into the bargain.
In the silence came the whistle of the cold wind through the halyards. Whatever the prize and the promise it was something he could never accept. Emma's safety meant the world to him. If his mother had known Zeus, and had been going to meet him on the day she disappeared, then there was no doubt in his mind what had happened to her.
'My mother's dead,' he said. 'And my daughter's alive. I'd like to keep it that way.'
Sawyer swiftly turned and climbed into the car. Lee followed him without a backward glance. Horton watched the car until the tail lights disappeared. He climbed on his Harley. He'd be glad to get back to the station, and some kind of sanity, even if it did mean listening to DC Walters grumbling and Steven Kingsway's twisted reasoning behind him killing three people. But there was somewhere he had to go first and two people he had to see.
He swung off the seafront and headed for Bristol Road to tell Mr and Mrs Collins they'd been right about their son Daniel.