Dromo looked shifty. Faustus sniffed and winced, then looked guilty too. ‘As far as I know, Flavia Albia, all our household receive bath house money.’ He fixed Dromo. ‘What do you have to say for yourself, boy?’ Slaves are called ‘boy’ even if they are seventy years old. I had never heard Faustus do it before, but he wanted to indicate annoyance.

Squirming, the messenger admitted he was regularly given the necessary quadrans. I asked what he did with it. Dromo whimpered that he saved up until he had enough money for a cake.

Faustus looked angry, though I think he was also trying not to laugh. ‘Let’s not be harsh,’ I intervened. ‘While you are working for me, Dromo, use the money properly, then each time you clean off, I will buy you a cake myself.’ Some baths have their own pastry shops, or at least a hawker with a sweetmeat tray.

Dromo had no idea when to keep quiet. ‘Can I choose my own?’

Faustus rolled his eyes, but I agreed.

Faustus and I sat down for a review of the evidence.

‘You’re going soft,’ he said as we arranged ourselves, nodding towards Dromo who loafed at a distance.

‘Not as soft as you, putting up with him. I have a brother and cohorts of cousins. I know boys.’ It was men who got the better of me − sometimes. I shuffled my note tablets, so Faustus would not read that thought.

My report took time. Halfway through, one of the aediles’ public slaves appeared, bringing a tripod table and a supper that Faustus must have pre-ordered. A change of scene would have been welcome to me after such a long set of interviews, but if we had walked out to eat in a public place we might have been overheard.

It was pleasant enough in the courtyard. As part of a magistrates’ office, it was there for display; in order to show the benefits of well-run government under our benign and wondrous emperor, its garden was better kept than that at the Aviola apartment. With food, drink and a sympathetic listener, I relaxed. For me, coming from a very different climate, one great joy of Rome was how you could sit with friends and family out of doors late into the evening.

Once I had reported, I was happy to sit quiet. Manlius Faustus was famously taciturn; he seemed in no hurry to be off home, so he sat on with me. The slave who had served our food came to take away empty bowls, bringing us a beaker of wine each and a jug to water it to taste.

Faustus raised his cup in a good-mannered salute, to which I responded.

‘I suppose time is still of the essence, Tiberius?’

‘Take all the time you need. Let’s get it right.’