'Of course you're the expert on women, Marcus Didius!' Helena had popped back without us noticing. 'Don't underestimate our guest.'

I thought a faint smile crossed the Nabataean's face.

Helena, who always knew when to change the subject, then soothed Musa adroitly. 'Your host carries out intrusive work; he forgets to stop when he comes home. There are plenty of other aspects to investigate. Marcus spent some time last night trying to ask Ione's friends about her life.'

Musa ducked his head rather, but said, 'I have found some information.'

He sounded shy about his source, so I demanded cheerfully, 'Was this while you were sitting up all night comforting Byrria?' Helena threw a cushion at me.

'The girl who played the tambourine,' said Musa patiently, as reluctant to name the corpse he had seen naked as he was to specify his informant, 'had probably been connected with Chremes the manager and with Philocrates the handsome one.'

'I expected it,' I commented. 'Chremes exacted a routine dalliance, probably as the price of her job. Philocrates just thought it was his duty as a seducer to go through the orchestra the way a hot knife skims a dripping pan.'

'Even Davos probably liked her, I am told.'

'She was a likeable girl,' Helena said. There was a trace of rebuke in her tone.

'True,' Musa answered gravely. He knew how to handle disapproval. Somebody somewhere had taught him when to look submissive. I wondered if by chance the sister he lived with in Petra was like any of mine. 'It is suggested that Ione was most friendly on a regular basis with the Twins.'

Helena glanced at me. We both knew that it must be Byrria who had made these suggestions. I reckoned we could rely on her information. Byrria struck me as observant. She might not like men herself, but she could still watch the behaviour of other girls curiously. The others may even have talked freely to her about their relationships, though they were more likely to avoid a woman with Byrria's reputation, thinking her stuck-up and sanctimonious.

'It would fit,' I answered thoughtfully. 'The Twins were both at Petra. Both of them are already on our suspects list for killing Heliodorus. And it looks as if we can straight away narrow the focus to one, because Grumio was making the Gerasenes crack up with laughter by insulting their neighbours all night.'

'Oh no!' Helena sounded regretful. 'So it seems to be Tranio!' Like me, she had always found Tranio's wit appealing.

'Looks like it,' I conceded. Somehow I never trust solutions that appear so readily.

Instead of breakfast, which I could not fancy, I went out for an early prod at the personnel. First I cleared the ground by eliminating those who were least likely to be involved. I soon established that Chremes and Phrygia had been dining together; Phrygia had invited their old friend Davos, and for most of the evening they had also been joined by Philocrates. (It was unclear whether Chremes had deliberately brought in the arrogant actor, or whether Philocrates had invited himself.) I remembered seeing this group sitting quietly outside the manager's tent the night before, which confirmed their alibis.

Philocrates had had a later appointment too, one he readily mentioned. He was proud to tell me he had been chalking up a success with a female cheeseseller.

'What's her name?'

'No idea.'

'Know where to find her?'

'Ask a sheep.'

However, he did produce a couple of ewe's milk cheeses -one half-eaten – which I accepted at least temporarily as proof.

I was ready to tackle Tranio. I found him emerging from the flute-girl Afrania's tent. He seemed to expect my questions, and struck a truculent attitude. His story was that he had spent the evening drinking and doing other pleasant things with Afrania. He called her out from her tent, and of course she backed him up.

The girl looked as if she were lying, but I was unable to shake her. Tranio had an odd appearance too – but a strange expression won't convict. If he was guilty, he knew how to cover himself. When a winsome flautist declares that a man with all his faculties has been bedding her, any jury tends to believe it's true.

I looked Tranio straight in the face, knowing these defiantly flashing dark eyes might be the eyes of a man who had killed twice, and who had attempted to drown Musa too. An odd sensation. He stared straight back tauntingly. He dared me to accuse him. But I was not ready to do that.

When I left them I was certain that Tranio and Afrania were turning back to each other as if to argue about what they had told me. If it had been the truth, of course, there should have been nothing to argue about.

I felt my morning's investigations were unsatisfactory. More pressing business loomed. We had to give Ione a funeral, and I was needed to arrange it. All I could add to my enquiries was a rapid chat with Grumio.

I found Grumio alone in the clowns' tent. He was exhausted and had the grandfather of hangovers. I decided to put the situation to him directly: 'Ione was killed by a man she was close to. I'll be straight. I hear that you and Tranio were her most frequent contacts.'

'Probably correct.' Gloomily, he made no attempt to dodge the issue. 'Tranio and I are on free-and-easy terms with the musicians.'

'Any intense relationships?'

'Frankly,' he admitted, 'no!'

'I'm plotting everyone's movements yesterday evening. You're easy to rule out, of course. I know you were delighting the crowds. That was all night?' The question was routine. He nodded. Having witnessed him on his barrel myself on two or three occasions last evening, that ended it. 'Tranio tells me he was with Afrania. But did he have a similar friendship with Ione too?'

'That's right.'

'Special?'

'No. He just slept with her.' Helena would say that was special. Wrong; I was being romantic about my beloved. Helena had been married, so she knew the facts of life.

'When he wasn't sleeping with Afrania?' I said dourly.

'Or when Ione wasn't sleeping with someone else!' Grumio seemed troubled about his partner. I could see he had a personal interest. He had to share Tranio's tent. Before he next passed out after a few drinks, he needed to know whether Tranio might stick his head in a water pail. 'Is Tranio cleared? What does Afrania say?'

'Oh she supports Tranio.'

'So where does that leave you, Falco?'

'Up a palm tree, Grumio!'

We spent the rest of that day, with the help of Musa's Nabataean colleagues, organising a short-notice funeral. Unlike Heliodorus at Petra, Ione was at least claimed, honoured and sent to the gods by her friends. The affair was more sumptuous than might have been expected. She had a popular send-off. Even strangers made donations for a monument. People in the entertainment community had heard of her death, though not the true manner of it. Only Musa and I and the murderer knew that. People thought she had drowned; most thought she had drowned inflagrante, but I doubt if Ione would have minded that.

Naturally The Arbitration went ahead that night as planned. Chremes dragged out the old lie about ' She would have wanted us to continue:" I hardly knew the girl but I believed all Ione would have wanted was to be alive. However, Chremes could be certain we would pack the arena. The poolside voyeur in the filthy shirt was bound to have spread our company's notoriety.

Chremes proved to be right. A sudden death was perfect for trade – a fact I personally found bad for my morale.

We travelled on next day. We crossed the city before dawn. At first repeating our journey towards the sacred pools, we left by the North Gate. At the Temple of Nemesis once more we thanked the priests who had given Ione her last resting place, and paid them to oversee setting up her monument alongside the road. We had commissioned a stone plaque, in the Roman manner, so other musicians passing through Gerasa would pause and remember her.