Downstairs, in the lower set of cell blocks, the sound of a pissed-up rendition of ‘American Pie’ warbled and roared out from the cell next door to Dr Marks’s. Whoever was on the other side screamed a non-stop barrage of abuse and threats at someone called Baz for sleeping with his girlfriend.

It wasn’t quite Tourette’s, but it was the next best thing. Which meant Logan probably owed Kathy a couple of pints at least.

Dr Marks sat on the floor, backed into a corner, rocking gently away, chewing on the side of his thumb. ‘I know what you’re doing and it’s not going to work. Doctor-patient confidentiality is imperative in my line of work.’

Logan settled down on the end of the mattress. ‘It doesn’t have to be like this.’

‘You can’t. . . I won’t betray my principles.’ Blood dripped from the end of his chewed thumb. He stuck it in his mouth and sucked. ‘I won’t.’

‘If you think a couple of hours in the cells is bad, just wait till the Sheriff gives you a week in Craiginches for contempt.’

‘I can’t. . .’

‘She’s out there killing people, and you can help us stop her. Think about it.’

He sniffed, blinked. Chewed on his bleeding thumb. ‘I can’t. . .’

In the cell next door, ‘American Pie’ was replaced by Billy Joel’s ‘Piano Man’, roared out like a football chant.

Logan stood and smiled down at Dr Marks. ‘I’ll pop past in the morning: say goodbye before they drag you off.’ A wink. ‘Have a nice night.’

Police. They spill out of the ugly striped building like woodlice from beneath a rotting log. Marching about, dragging coils of fizzing blue and red behind them like angry tentacles. Reaching along the granite streets, searching, probing.

They should be on the same side, but they’re not. They don’t see. Don’t see the Beasts and the Angels, the Witches and the Kelpie, the Wraith and the Ogres and the Ghosts. Don’t see the Hand of Death as they prowl the street.

They think everyone is Sheep.

They think she is Sheep.

But she’s so much more than that.

Rowan takes a deep breath and crosses the road – walks out into the middle of them.

The Kirk is my sword and my shield.

A pair of them laugh at a shared joke, shoulders hunched against the rain. They don’t even see her.

Then there he is.

In the tunnels beneath the earth he looked so normal, but here. . . His aura is different from the others. It’s blue and red, but ribbons of gold and black undulate around his head. A halo of light and darkness. Is he an Angel, or a Hand of Death? Does he even know himself?

And if she told him, would it make any difference?