I was aware of Anacrites eyeing me. I let him get on with it. 'Happy day, Falco?'

'Dead men and eager women all the way!'

'I suppose,' he probed, 'the secretaries at the Palace are keeping you in the dark?'

'Seems the general idea,' I replied, none too pleased by the thought.

Anacrites helped me make up lost time with the Alban nectar. 'I'm trying to place you, Falco. What's your role?'

'Oh, I was the son of an auctioneer until my happy-go-lucky father skipped from home; so now I'm off-loading this playboy's art and antiques onto the fancy goods stalls in the Saepta Julia…' He still looked curious so I carried on joking. 'It's like kissing a woman-unless I'm sharp, this could lead to something serious!'

Anacrites was searching the dead man's private documents; I knew that. (It was a job I would have liked myself.) He was tight lipped, an insecure type. Unlike Momus, who could carelessly sell off eight Numidian litter-bearers as two poultry-carvers, a charioteer and a fan dancer from Xanthus, Anacrites was examining the study here with the fine detail of an auditor who expects another auditor to be round later checking him.

'Falco, Momus is right,' he fretted. 'Why take the risk?'

'Excitement?' I offered. 'After Nero died, plotting who to make into the next Caesar was a more thrilling game than tossing up knucklebones. Our man enjoyed a gamble. And he was due to inherit a fortune, but while he was waiting for it, one house on the Quirinal may not have seemed too special to a jumped-up junior official who wanted Rome to notice him.'

Anacrites pursed his mouth. So did I. We looked around. The expensive Pertinax mansion seemed special to us.

'So,' I prodded, 'what have you discovered from his honour's papyrus rolls?'

'A pretty dull correspondent!' complained Anacrites. 'His friends were racetrack loudboys, not literary types. But his ledgers are immaculate; his accountant was constantly kept up to scratch. He lived for his cash.'

'Found any names? Details of the plot? Proof?'

'Just biography; half a day with the Censor's records could have winkled out most of it. Atius Pertinax came from Tarentum; his natural father had rank, and friends in the south, but neither cash nor influence. At seventeen, Pertinax put that right by attracting an ancient ex-consul called Caprenius Marcellus who had plenty of status and oodles of money, but no heir-'

'So,' I encouraged, 'this elderly moneybags plucked young Gnaeus fully grown from the Heel of Italy and adopted him?'

'In the best tradition. So now Pertinax Caprenius Marcellus had grand ideas and a monthly allowance to pay for them. His new father adored him. He served as a tribune in Macedonia-'

'A safe, warm province!' I interrupted again, with an edge; I did my own national service in Britain: cold, wet, windy-and at that time (during the Great Rebellion) dismally dangerous.

'Naturally! A lad with a future has to look after himself! Back in Rome, as his first stepping stone into public life he marries the serious daughter of a rather dull senator, then promptly gets elected to the senate himself-first attempt; the rich boy's privilege.'

At this point I reached forward and gave myself more wine. Anacrites remained silent, savouring his, so I let myself paint in some colouring I thought he might not know: 'The Senator's safe-looking daughter was a mistake; four years into their marriage she smacked Pertinax with an unexpected notice of divorce.'

'Really!' smiled Anacrites in his silky way. It was part of his mystique as a spy to know more about other people than they knew about themselves. Even so, I knew more than he did about the ex-wife of Atius Pertinax.

One thing I knew was that a fortnight ago she seduced a citizen called Falco-much against his better judgement, though not at all against his will.

I drained off my glass. Staring at it, I went on. 'I met Pertinax, once.'

'In your work? What was he like?'

'Describing him politely is more than I can manage without another drink!' This time we both squeezed the sweet amber from its silver samovar. Anacrites, who liked to appear civilized, took warm water in his. I watched him dip his wrist gracefully to regulate the drips from a jewelled jug, then swirl the liquors to mix them in his glass. I had my water the way I like it, in a separate cup.

I enjoyed my wine for a moment, ignoring the water, then said of Pertinax: 'Vicious. A real thresher shark! By the time I blundered into him he was an aedile-' Junior law enforcement officer, in support of a district magistrate. 'Pertinax had me arrested on a pretext and badly beaten up, then his friendly subordinates wrecked my apartment and tore my furniture apart.'

'Did you make a complaint?'

'Against a senator?' I scoffed. 'And see the magistrate turn out to be his uncle, who would dump me in prison for contempt?'

'So the aedile used his baton on you, and now in return,' Anacrites suggested, glancing round, 'you're rifling through his honour's Macedonian curios!'

'Rough justice,' I smiled, handling the spiralled white stem of my wineglass delicately.

'Apt!' I could see speculation working in his pale eyes. 'So, you met Pertinax…' I guessed what was coming. 'Rumour has it you are no stranger to his wife?'

'I've done work for her. Hasty temper and high principles-not your type!' I insulted him calmly.

'Is she yours?'

'Hardly! She's a senator's daughter. I pee in the gutter, scratch my backside in public, and have been known to lick my plate.'

'Ha! She never remarried. I reckon this divorce of theirs may have been some kind of blind-'

'Nix!' I snorted. 'Pertinax was arrested because his ex-wife reported him.'

Anacrites looked sore. 'No one saw fit to warn me of that! I was all set to march in and interrogate the woman-'

'Best of luck!' I said drily.

'Why expose him? Vindictiveness?'

A fair question; yet my hackles rose. 'Politics. Her family supports Vespasian. She never realized that if Pertinax was clapped in prison his cronies would muffle him before he could be interrogated-'

The spy winced; he knew how his enforcement colleagues extracted information in the quiet privacy of a jail cell. 'So, Pertinax Marcellus-Hail and Farewell!' cried Anacrites with mock reverence.

Personally, I'd rather find my way across the Styx with no passport at all, than be handed into Hades with the blessing of the Emperor's Chief Spy.

It was time for Anacrites to report to the Emperor. Momus was asleep, his dirty toes turned out.

Anacrites looked at me from that smooth, cynical face; I decided I could work with him-so long as I always kept one hop ahead.

'You're assessing me for Vespasian,' I suggested, 'while Momus-'

'Puts in a nightly report on us both!' Anacrites breathed with clerkish contempt. His light eyebrows lifted scornfully. 'So, Marcus Didius Falco, where does that place you?'

'Just settling old scores with Pertinax!'

Anacrites could not bring himself to trust me; sensible lad. Nor, needless to say, did I trust him.

Tonight when he got up to leave I unravelled my crumpled toga and tagged along. We went out very quietly, leaving Momus behind, fast asleep.