From the start it was an unhappy journey. Lepidina and her mother had already journeyed all the way from Rome, and were frankly tired of travelling. Brigonius had hoped he could at least use the trip to get to know Lepidina a little better. Lepidina did some perfunctory flirting with Brigonius for the first day or two, but soon grew bored and retreated into the back of the carriage, where, curled up among bundles of clothing, she immersed herself in books of poetry.

She showed these to Brigonius. Written out on papyrus scrolls they were poems by somebody known as Ovid. Brigonius found this difficult to read; his Latin wasn’t good enough to spot all the allusions and verbal trickeries. But the poetry was racy stuff and he found it embarrassing.

Severa teased him mercilessly. ‘You’re like all young people. Do you imagine your generation invented sex? ...’

But these intervals of banter were moments in a rather dreary progression.

In the event it wasn’t Lepidina whom Brigonius got to know better during the journey but her mother, in the long hours he spent riding with her at the front of the carriage. Alongside Severa, he saw his own landscape through her sharper eyes.

Eighty years after Claudius, Britannia was divided into two distinct parts. The south and east had been pacified, and a civilian government was emerging based on the new towns. But the north and west remained essentially under military control. Thus Brigonius had grown up under an occupying power. The Romans even had different names for the two populations, the Brittani of the south and the Brittones of the north.

‘The country here makes you uncomfortable, doesn’t it?’ Severa said. ‘Home for you is different from all this. The south-east of Britain has more in common with Gaul or Italy than with Britain’s own north-west.’

He tried to put his feelings into words. ‘At least at home you know who you are. Things are clear. You’re Roman or you’re Brigantian. Here it’s all - muddy.’ He said defiantly, ‘But even here the touch of the Roman is light.’

She raised her eyebrows.

‘Look around you. The farms were here before the road. You can tell from the way the road just cuts through the fields. And the farmers are working the land just as they always did, long before the Romans came. So you see, the Romans have made hardly any difference at all.’