He woke up early, but was in no hurry to rise, and this time he let Mrs Wilkie bring him his tea in bed. She’d had a good night, never once thinking him her long-dead husband or long-lost son, so he reckoned she deserved not to be kept out of the bedroom. Not only tea this morning, but ginger nuts, too. And the tea was hot. But the day was cool, still grey and drizzly. Well, never mind. He’d be heading back to civilization, just as soon as he’d paid his respects elsewhere.

He ate a hurried breakfast, and received a peck on the cheek from Mrs Wilkie before leaving.

‘Come back again some time,’ she called, waving to him from the door. ‘And I hope the jam sells all right . . .’

The rain came on at its heaviest just as his windscreen wipers gave up. He stopped the car to study his map, then dashed outside to give the wipers a quick shake. It had happened before: they just stuck, and could be righted with a bit of force. Except this time they really had packed in. And not a garage in sight. So he drove slowly, and found after a while that the heavier the rain fell, the clearer his windscreen became. It was the slow fine rain that was the problem, blotting out all but the vaguest shapes and outlines. The heavy dollops of rain came and went so fast that they seemed to clear the windscreen rather than obscuring it.

Which was just as well, for the rain stayed heavy all the way to Duthil.

Duthil Special Hospital had been planned and built to act as a showpiece for treatment of the criminally insane. Like the other ‘special hospitals’ dotted around the British Isles, it was just that – a hospital. It wasn’t a prison, and patients who arrived in its care were treated like patients, not prisoners. Treatment, not punishment, was its function, and with the brand new buildings came up-to-date methods and understandings.

All this the hospital’s medical director, Dr Frank Forster, told Rebus in his pleasant but purposeful office. Rebus had spent a long time last night on the telephone with Patience, and she’d told him much the same thing. Fine, thought Rebus. But it was still a place of detention. The people who came here came with no time limit attached, no ‘sentence’ that had to be served. The main gates were operated electronically and by guards, and everywhere Rebus had gone so far the doors had been locked again behind him. But now Dr Forster was talking about recreation facilities, staff/patient ratios, the weekly disco . . . He was obviously proud. He was also obviously overdoing it. Rebus saw him for what he was: the front-man whose job it was to publicize the benefits of this particular special hospital, the caring attitude, the role of treatment. The likes of Broadmoor had come in for a lot of criticism in previous years. To avoid criticism, you needed good PR. And Dr Forster looked good PR. He was young for a start, a good few years younger than Rebus. And he had a healthy, scrupulous look to him, with a smile always just around the corner.