I thought of Birgitta. If this were true, the plasticity of the dream would have created the scenario with her, too. Her second name would have been chalked up on the basement door, and the vision in the leaf-green swimsuit could have been created when I imagined her equivalent look in the painting she did of me. Even telling me she loved Charlie might only have happened for the first time under the car, and it would be directed at her husband, not me.

I lapsed into silence.

‘Hard to accept, I know,’ she said, ‘but narcosis is like that. This is intriguing, so tell me if you have any other dreams. But here’s a tip: if you value your career, tell no one else about the dream.’

‘I haven’t, and don’t intend to.’

She smiled, opened her hands and stretched them towards me. I placed mine between them and she clasped them tightly, the shorthand of the Winter embrace. It was firm, trusting and, unlike the full embrace, actually felt warm. As we clasped, I noted that a functioning eye wasn’t all she’d lost. She was missing her ring finger – from both hands.

The alarm on her watch buzzed at her plaintively.

‘That’s me out of here,’ she said, stifling a yawn while her unseeing eye blinked rapidly, ‘and one other thing: you’ll be seeing Toccata pretty soon and she and I have something of a  . . . strained relationship. It’ll be better for us both if this meeting remained private. As far as you’re concerned, I rescued you from the nightwalkers in the car park, and we parted company outside the Siddons – yes?’

This didn’t sound good, and Aurora sensed my reticence.

‘I need an oath on this, Charlie. I saved your butt twice, remember.’

‘Okay,’ I said, ‘oath.’

‘Good. Now, I don’t want to seem underhand or insulting but Toccata’s a poisonous, untrustworthy, self-serving little reptile – with a severe personality disorder and a disquieting capacity for cannibalism.’

‘That sounds underhand, insulting – and slanderous.’

‘It’s fair comment. I’ll leave Birgitta for you to deal with. There’s a pit behind the Siddons where you can thump her and dump her. It’s normal to sprinkle on some lime for when the thaw sets in. Here’s another tip: get her to walk there herself. It’ll save you a lot of heavy lifting. Oh, and don’t forget her thumb to claim the bounty.’

I tried to swallow, but found I couldn’t.

‘Right,’ I croaked, ‘good tip, thank you.’

‘No problem. By the way, did you see Hugo Foulnap again?’

‘No, but then I’ve been asleep.’

‘Of course. Well, keep an eye out and if you see him, talk to me first. Oh, and give Toccata a message from me: “Queen’s knight takes bishop, hope you are devoured by slime in your sleep”. Got it?’