'Getting good prices?' he asked eagerly; I grinned at him. The Imperial skinflint's idea of a good price was pretty steep.

'You won't be disappointed, sir. I'm using an auctioneer called Geminus. He treats me like a son.'

'Anacrites thinks you are!' Vespasian tossed across. It startled me that Anacrites was so sly. My father left home with a red-headed scarfmaker when I was seven years old. I had never forgiven him and my mother would be mortally insulted if she thought I dealt with him nowadays. If Geminus was my father, I didn't want to know.

'Anacrites,' I told Vespasian shortly, 'lives in his own romantic world!'

'Hazard of his job. What do you think of Momus?'

'Not much.'

Vespasian grumbled that I never liked anyone; I agreed. 'Pity about Longinus,' he mused on the verge of concluding our interview. I knew what he meant; any Emperor can execute people who don't agree with him, but leaving them free to attack him again takes style.

'You do realize,' I complained, 'the brother Gordianus will think you ordered today's inferno? When I turn up with my happy smile he'll suppose I'm your private exterminator-or am I?' I demanded suspiciously.

'If I wanted a tame assassin,' Vespasian answered, letting me insult him as if he was pleased by the novelty, 'I'd use someone who makes fewer moral judgements-'

I thanked him for the compliment, though he had not intended it, then I left the Palace cursing the chance of a contract bonus which I had lost through the priest Longinus finding himself a fiery end. To qualify for the middle rank, I needed four hundred thousand sesterces invested in Italian land. Vespasian paid my out-of-pocket expenses, plus a meagre daily rate. Unless I could earn some extra, this would bring in a bare nine hundred a year. It cost me at least a thousand just to live.

Despite the dangers of the streets at night, I hoofed it back to the Pertinax house. I managed to reach the Quirinal with nothing worse than a bruised arm after a drunk with no sense of direction crashed straight into me. His sense of direction was better than it looked; as we pirouetted madly he relieved me of my purse: the one I carry full of pebbles for footpads like him.

I quickened my step for several streets, in case he rushed after me to complain.

I arrived at the house without further mishap.

Because of the curfew restrictions in Rome we could only bring wheeled vehicles onto the Quirinal after dark; being an executor was ghostly work. Four carts were standing outside now while the auctioneer's men loaded them with satinwood couches and enamelled Egyptian sideboards, wedging in lamps to stabilize the loads. Indoors I helped the porters by putting my shoulder to a screwdown clothes press they were manhandling through the hall.

'Falco!'

The foreman Gornia wanted me to see something. Our footsteps echoed as we turned down an empty red corridor to a ground-floor bedroom I had not been in before. We stepped through a panelled door, set between two basalt portrait busts.

'Oh very nice!'

A lady's room: sumptuously quiet. Five times as big as any room I had ever lived in, and half as high again. The dado was painted to imitate dove-grey marble, with upper wall panels in celestial blue, outlined with fine pastel ribboning and finished with central medallions. The floor mosaic had intricate patterns in shades of grey, planned for the room of course, with a designated space for the bed; the ceiling had been lowered there, creating a cosy niche for sleeping in.

The bed had gone. Only one item remained. Gornia pointed to a small chest carved in oriental wood, which stood off the ground on four round painted feet.

'Indian import? Is there a key?' Gornia handed me a hunk of cold brass, with an uneasy look as if he feared we were about to find a mummified baby. I blew at the dust and opened up.

Nothing valuable. Old letters, and some casual strings of amber beads, all uneven shapes and mismatched colours, like something a girl full of hope might keep in case she ever had a child to play with them. The top document looked tasty: Turbot with Caraway Sauce.

'Nothing for Anacrites. Keep the box; I'll see to it-' Gornia thanked me, and two porters removed the chest.

I stayed behind alone, sucking my lower lip. I had realized who lived here once. Helena Justina: the conspirator's ex-wife.

I liked this room. Well; I liked her. I liked her so much I had been trying to convince myself I had better not see her again.

Now some old box that once belonged to her had set my heart thumping like a lovelorn twelve-year-old's.

All that remained here was a massive chandelier on a great gilt boss. A draught among its expensive tapers created leaping shadows which led me through a folding door into a private courtyard garden-a fig tree and rosemary. Helena would have enjoyed sitting there, drinking her warm tisane in the morning or writing letters in the afternoon.

I came back and just stood, imagining how this beautiful room must once have been, littered with the paraphernalia of her life: a high bed and the inevitable wicker chairs and footstools; display cabinets and shelves; perfume jars and oil flasks; silver cosmetic casques; sandalwood boxes for jewellery and scarves; mirrors and combs; coffers for clothes. Waiting maids moving to and fro. A harpist to entertain her when she felt sad. (Plenty of time for that: four miserable years of it.)

Pertinax had had his bedroom in a separate wing. That is how the rich live. When Pertinax had wanted his noble young wife to grant his matrimonial privileges, a slave summoned her down two chilly corridors. Perhaps sometimes she had gone to him of her own accord, but I doubted that. Nor would he ever have bothered to surprise her here. Helena Justina had divorced Pertinax for neglecting her. I hated him for it. He wallowed in luxury, yet his sense of values was grotesque.

I strolled back to the atrium with a pain in my gullet, and happened upon Geminus.

'You look seedy!'

'Picking up tips on decor.'

'Get yourself a proper job and earn some decent cash!'

We had cleared out the statues, but while we were gossiping a new one turned up. Geminus valued the artwork privately then openly leered at the wench. She was superbly carved, then cast in bronze, a joy to inspect: Helena Justina herself.

I whistled softly. It was a clever work of art. I wondered how it was possible to capture in metal that sense of angry outrage always waiting to break out, and the hint of a smile at the corner of her mouth… I flicked off a huddle of woodlice from the angle of her elbow, then patted her neat bronze behind.

Geminus was the auctioneer Anacrites had libelled as the parent who inflicted me on the world. I could see why people might think so. (Just as, looking at my family, I could see why my father had chosen to escape.) He was a stocky, secretive, moody man, about sixty years old, with rampant grey hair, all curls. He was good-looking (though less good-looking than he thought). His profile swooped in one strong line without a ledge between the eyes-a real Etruscan nose. He had a nose for a scandal and an eye for a woman that had made him a legend even in the Saepta Julia where the antique dealers congregate. If one of my clients had an heirloom to sell, I pushed it his way (if the client was a woman, and I happened to be busy, I pushed her too).

We stood playing at art critics. Helena's statue was unsigned but had been made by a good Greek sculptor, from life. It was magnificent, with gilding on the headdress and tinted eyes. It showed Helena at about eighteen years old, with her hair folded up in the old-fashioned style. She was formally robed-in a way which cleverly hinted how she looked underneath.