The aedile and my uncle were in the tribune’s office, looking tight-lipped, while Scaurus, a loud-voiced, long-in-the-tooth ex-centurion, bragged about what his men’s brilliant interrogation had achieved. As Faustus muttered under his breath to me, there was no guarantee anything their now blood-spattered prisoner had told them was true. I agreed, but pulling limbs out of sockets and cutting off fingers is what makes the vigiles feel comfortably professional. Scaurus was a caring commander, who liked to think his men were happy in their work.

Fairly early on in what the vigiles shyly called ‘processing’, the prisoner had claimed that to his certain knowledge nobody from the Rabirius gang (to whom he had admitted he belonged) had broken into the Aviola house. No one of theirs took the silver. No one murdered the householders. That was all Faustus and I wanted to know, though for Aulus and the tribune there were bigger questions.

The man had agreed – wisely, given the circumstances of his capture − that he took part in battering Camillus Justinus but he would not name who gave him orders. Whoever despatched him must be more frightening than the vigiles. Cassius Scaurus said dolefully, ‘My lads could put more pressure on – but the pathetic lump would only go and die on us. I’m not going to tolerate do-gooders asking how a prisoner came to expire in custody before the praetor even knew we had him, when I can wait for the parts we toasted to heal over, then have him nicely executed as a treat for the public – well, am I?’

No, we answered.

The praetor, holding a post second only to consul, was Rome’s chief law officer. His role was to examine suspects that the vigiles said should be sent for trial. In public order cases, outside their remit of imposing set fines for basic misdemeanours, this gave their victims a tier of appeal − not that most praetors troubled to look closely at pleas of innocence. Well, not without strong inducements of a kind I won’t mention.

This prisoner expected to avoid seeing the praetor. He thought he would be rescued. It seemed he was right. Just then the man I talked to at the Galatea, Gallo, paid the Fourth Cohort a visitation, full of swagger and hung about with an expensive-looking legal team: a couple of shiny lawyers wearing togas with a fancy nap. They must have earned a lot of fees to pay for those outsize signet rings. The entire party was belching after what must have been a good breakfast.