Roscius emerged through the food counters of the Diana, a workaday thermopolium that seemed to be full of bricklayers. He had somebody with him, a bald man who looked Cappadocian, possibly the subordinate we had earlier seen him leave behind at the Galatea. They strolled together down from the Cispian Hill, with us gently following. We did not bother with the dodging technique, but merely paced ourselves to remain a good distance behind, where we might not be noticed.

They reached the Clivus Suburanus at the Porticus of Livia. They stayed together on the main road as far as the Esquiline Gate, where Roscius waved off the other man. He went on alone through the arch and into the Gardens of Maecenas.

Faustus gripped my elbow, then we quickened our pace and caught up with him.

35

‘Going somewhere? Mind if we tag along?’ Manlius Faustus must have learned this ghastly old line when he pulled in persons of interest for questioning. How many shopkeepers who encroached on pubic pavements had he arrested with that cliché? Perhaps he had first heard Morellus use it.

At least the familiar script made Roscius feel at ease. However, he lost his confidence when Faustus then took us into the Auditorium of Maecenas for our conversation.

We had walked on through the gardens, with the aedile and I either side of the young criminal, until this beautiful place appeared and Faustus moved swiftly to have a word with the curator. I saw money being passed over. Then we were let in.

‘I thought so!’ exclaimed Faustus, grinning at the crook. ‘Nice and big. No one else here. Nobody will overhear us.’

That may not have given Roscius any sense of security.

I knew the building. The Gardens of Maecenas had been built over an ancient graveyard, reclaiming an area that for years had been a famously unhealthy necropolis, full of burial pits of the poor.

My mother once read me a poem about witches haunting this sinister spot under a lonely moon, a terrifying piece of work where cruel hags murdered a young boy: Horace, in spooky mode; he did it gruesomely. I was going through a mystic period at the time, a teen myself, in love with the supernatural without seeing its true menace. Now I despised horrors. Forget plague-ridden burial grounds with bones sticking out of broken old pots. All I wanted were these tranquil and elegant new gardens that had finally resulted from a land-grab by entrepreneurs. The first time I went for a walk in a grand public space after Helena and Falco brought me to Rome, I was astounded. There was nothing like any of these public gardens in Londinium.

All right. There is nothing fancy at all in Londinium.