He grabbed his car keys and headed for the front door.

Behind him the answer machine clicked in and a voice he didn’t recognize faded behind him down the narrow hallway.

‘Andy, hi. Mick Purdy, remember me? We met at Bramshill a few years back. Happy days, eh? So how’re you doing, mate? Still shagging the sheep up there in the frozen north? Listen, if you could give me a bell, I’d really appreciate it. My number’s…’

As the Fat Man slid into his car he dug into his memory bank. These days, especially with recent stuff, it sometimes seemed that the harder he looked, the darker it got. Curiously, deeper often meant clearer, and his Mick Purdy memories were pretty deep.

It wasn’t a few years since he’d been on that Bramshill course; more like eight or nine. Even then, he’d been the oldest officer there by a long way, the reason being that for a decade or more he’d managed to find a way of wriggling out of attendance whenever his name came up. But finally his concentration had lapsed.

It hadn’t been so bad. The official side had been slightly less tedious than anticipated, and there’d been a bunch of convivial colleagues, grateful to find someone they could rely on to get them to bed when their own legs proved less hollow than they’d imagined. DI Mick Purdy had usually been one of the last men standing, and he and Dalziel had struck up a holiday friendship based on shared professional scepticism and divided regional loyalties. They exchanged harmonious anecdotes offering particular instances of the universal truth that most of those in charge of HM Constabulary couldn’t organize a fuck-up in a brothel. Then, when concord got boring, they divided geographically with Purdy claiming to believe that up in Yorkshire in times of dearth they ate their young, and Dalziel countering that down in London they’d produced a younger generation that not even a starving vulture could stomach.