‘Chasing down some leads on the Garfield case.’ She shrugged, gave him a half smile. ‘Nothing but dead-ends, sorry. But I wanted to ask if—’

‘If it’s not toe-curling urgent: go home.’ He stood, paused, then cricked his head to one side, then back the other way – something in his neck popped and creaked like a fistful of gristle.

‘I want to volunteer for the soup-kitchen job.’

‘Nothing to do with me: it’s DI Bell’s shout.’ Logan sat back down again. ‘Where are we with the GSM trace? ’

‘Still nothing. I got in touch with their phone companies: neither of them’s used their mobiles for a week and a bit. No outgoing calls or text messages.’

He swivelled his chair from side to side, staring up at the ceiling. ‘So they’ve not used their phones for a week, but Agnes Garfield still manages to get in touch with her therapist. . .’

‘Probably just picked up a new pay-as-you-go SIM card. Bet Dr Marks has got the number though.’ A shrug. ‘If we could get him to talk.’

Whatever happened to the good old days, when you could batter a suspect around the legs and back with a length of rubber hose till they confessed? Still, with any luck Goulding was right and a night in the cells surrounded by drunken idiots would break Dr Marks like a stale biscuit. ‘Go home. Get some rest.’

‘But, Guv, the soup kitchen is—’

‘They don’t start serving till nine. Gives you nearly an hour and a half. Tell DI Bell I said you’re to help him out till midnight, no later. I want you in bang on time tomorrow. And look. . .’ He picked Agnes Garfield’s stolen dittay book off his desk, then followed it with Chalmers’s report on its contents. ‘I’m taking both home to read tonight. Just make sure that next time, you hand them to me.’

‘Yes, Guv.’ She smiled, showing off those sharp little teeth of hers. ‘Thanks, Guv.’

‘Oh, and this soup-kitchen job: don’t think you’re getting any overtime for it, OK? ’

Standing in the corridor, Logan locked the office door. Closed his eyes. Rested his head against the cool wooden surface. Home. . . Quarter to eight: forty-five minutes to get back to the caravan and get the lasagne in the oven.

His phone buzzed in his pocket: text message.

Do U want me 2 pick up some wine or something?

Logan thumbed in a quick reply, then froze.

A voice behind him: ‘Guv? ’

He slipped the phone back into his pocket. ‘Rennie, unless your head’s on fire, I’m not interested.’

‘Got something for you? ’

Probably another moan. He took the keys out of the lock and dumped them in his pocket. ‘Thought you were back on days now? ’

‘No, you’re going to love this one. . .’