The morning briefing came and went, Logan handing out the assignments, getting the teams together. One lot to go question every householder within a mile of the children's last known position, both pre-and post mortem. Had they seen this man – Roadkill – hanging around? Another lot to go through the records for anything and everything relating to Bernard Duncan Philips. And last, by far the largest team, would get the nastiest job of all: digging through a ton of rotting animal corpses, looking for a severed penis. This wasn't a job for the council's sanitation department any more. This was a murder enquiry.

No one asked where DI Insch was, or said a single word about the front page spread in this morning's P amp;J. But Logan knew they'd all read it. There was an undercurrent of hostility in the room. They'd jumped to the conclusion Logan knew they would: that he'd gone to the press and screwed over Insch.

WPC Watson wouldn't even meet his eyes.

When the briefing was over and everyone had shuffled out, Logan tracked down DI Steel. She was sitting in her office, feet up on the desk, smoking a fag and drinking coffee, a copy of the morning paper spread over the clutter on her desk. She looked up as Logan knocked and entered, saluting him with her mug.

'Morning, Lazarus,' she said. 'You looking for your next victim?'

'I didn't do it! I know what it looks like, but I didn't do it!'

'Aye, aye. Shut the door and park your arse.' She pointed at the rickety chair on the other side of her desk.

Logan did as he was told, politely refusing the offer of a cigarette.

'If you did go to the press with this,' she poked the paper, 'you're either so fucking stupid you can't breathe unsupervised, or you've got some serious political ambitions. You ambitious, Mr Local Police Hero?'

'What?'

'I know you're not stupid, Lazarus,' she said, waving her fag in the air. 'Speaking to the press would always come back and bite you on the arse. But this could kill DI Insch's career. With him out the way, and the press on your side, you're a shoe-in for his job. The rank and file will hate you, but if you can live with that, you keep going up the tree. Next stop Chief Inspector.' She even gave him a salute.

'I swear I didn't speak to anyone! I wanted to let Roadkill go too; there was no evidence against him. I even gave him a lift home!'

'So how come this reporter's polishing your arse with one hand and spanking Insch with the other?'

'I…I don't know.' Liar. 'He thinks we're friends. I've only spoken to him half a dozen times. And DI Insch cleared every word.' Big fat liar. 'I don't think he likes the inspector.' At least that bit was true.

'I can relate to that. Lots of people don't like Inschy. Me? I like him. He's big. You see an arse like that: you've got something to sink your teeth into.'

Logan tried not to form a mental picture.

DI Steel took a deep drag on her cigarette, letting the smoke hiss out through a happy smile. 'You spoken to him yet?'

'What, DI Insch?' Logan hung his head. 'No. Not yet.'

'Hmm…Well he was in early. I saw his four-wheel-drive girl-mobile in the car park this morning. Probably hatching a plot with the upper brass: getting you transferred to the Gorbals.' She sat and smiled and for the life of him Logan couldn't tell if she was joking.

'I was hoping that maybe you could speak to him-'

The smile turned into a laugh.

'Want me to ask him if he fancies you?'

Logan could feel the colour running up his neck to his cheeks. He knew what DI Steel was like. Had he actually come in here expecting her to be sympathetic and supportive? Maybe he really was too stupid to breathe unsupervised. 'I'm sorry,' he said, picking himself out of his seat. 'I should get back to work.'

She stopped him only when the door was swinging closed. 'He's going to be fucking pissed off. Maybe not at you, maybe at this Miller bloke, but he's going to be pissed off. Be prepared to be shouted at. And if he won't listen to you, maybe have to think omelettes and eggs. Just because you didn't start this doesn't mean you can't play it out.'

Logan stopped. 'Play it out?'

'Ambition, Mr Hero. Like it or not you could still end up sitting in his seat. You don't have to like the way it came about, but you might make DI because of this.' She lit another cigarette from the smouldering remains of the last one, before flipping the dogend into her coffee. It gave a short hiss as she winked at him. 'Think about it.'

Logan did. All the way down to his mini incident room. The WPC was back on the phone, taking names and statements. With Roadkill's arrest all over the papers and the television news, everyone and their maiden aunt was coming forward with information. Murdered kiddie, officer? No problem: I saw her getting into a Corporation dustcart. Bold as brass with this bloke from the papers…

The health authorities had started responding to his request for information on little girls with TB in the last four years as well. The list of possibles was small, but it would get bigger as the day wore on.

Logan scanned the names, most of which had already been scored out by his WPC. They weren't interested in any child that wouldn't be between three and a half and five by now. They'd know who she was by the end of the day.

He was expecting the call, but it still made his innards clench: report to the superintendent's office. Time to get his arse chewed out for something he didn't do. Other than lie to Colin Miller. And DI Insch.

'I'm just going out for a walk,' he told the WPC on the phones. 'I may be some time.'

The super's office was like a furnace. Logan stood to attention in front of the wide oak desk with both hands clasped behind his back. DI Insch was sitting in a mock-leather, mock-comfortable visitor's chair. He didn't look at Logan as he entered and took up his position. But Inspector Napier, from Professional Standards, stared at him as if he was a science experiment gone wrong.

Behind the desk sat a serious-looking man with a bullet head and not a lot of hair. He was wearing his dress uniform. All buttoned up. Not a good sign.

'Sergeant McRae.' The voice was larger than the man, filling the room with portent. 'You know why you're here.' It wasn't a question; there was a copy of that morning's Press and Journal on the desk. Neatly lined up with the blotter and the keyboard.

'Yes, sir.'

'Do you have anything to say?'

They were going to fire him. Six days back on the job and they were going to throw him out on his scarred backside. He should have kept his head down and stayed off on the sick. Goodbye pension. 'Yes, sir. I want it known that DI Insch has always had my complete support. I didn't give this story to Colin Miller and I didn't tell anyone that I disagreed with DI Insch's decision to release Road…Mr Philips. Because it was the right decision, at the time.'

The superintendent settled back in his chair, fingers steepled in front of his round face. 'You have been speaking to Miller though, haven't you, Sergeant?'

'Yes, sir. He called me at half-six this morning wanting details of Mr Philips's arrest.'

DI Insch scrunched in his seat. 'How the hell did he know we'd arrested Roadkill? It wasn't public bloody knowledge! I'll tell you this-'

The superintendent held up his hand and Insch fell silent. 'When I challenged him he said it was his job to know,' said Logan, falling into policeman-giving-evidence mode. 'This isn't the first time he's had knowledge he shouldn't have. He knew when we found David Reid's body. He knew the killer had mutilated and violated the corpse. He knew the girl's body we found was decomposed. He has someone on the inside.'

On the other side of the desk an eyebrow was raised, but not a word was spoken. The DI-Insch-patented-interview-technique. Only Logan wasn't in any mood to play.