The country itself was quiet. It was a landscape of farms, of stone-walled fields and small wooden buildings. There were even some grand farmhouses, tile-roofed, enclosed by bristling walls. But many of these were evidently empty, shut up or even burned out, and many of the fields were clearly abandoned, their rain-eroded furrows strangled by weeds. It was rare that Isolde saw anybody working the land.
Nennius remarked on this to Damon.
'It's the Saxons,' said the young monk. 'Too many of them around here. So people are packing up and going off to the towns, or to live with relatives further west or north, or in Gaul. Even the rich have sold up, if they can, and cleared out.' He murmured, 'The Saxons are pagans, you know. They don't mix with us.'
Isolde wondered what tensions were concealed behind those simple phrases.
They came upon Camulodunum in the evening. The city itself sat within massive walls; it looked more like a vast fortress than a town.
And in the rolling fields outside the town and beside the river there were more Saxons-many, many of them, warriors with their horses and wives and children, camped out in tents or in clusters of small wooden huts, some of them set up in the bowl of a disused circus. The travellers picked their way uneasily through this loose camp, along the old Roman road. It was almost as if the Saxons were besieging the city. Damon reassured them there was nothing to fear; the Saxons were mercenaries and had been hired by the townsfolk for their protection. Isolde had no doubt that these fierce-looking warriors would be useful to have on your side. But she wondered what might happen if the money to pay them ever ran out.
They entered the city through the west gate. It was a big double archway that had been almost blocked up by chunks of stone, so that only one person could pass at a time. A soldier in very worn armour stood here collecting more tolls, this time on behalf of the curia, the town council.
Isolde was glad to enter the town, just to get away from the desolate and depopulated British landscape. But this was not Rome. The town within its walls was a bowl of rubble, a shattered townscape of derelict houses, weed-choked gardens and silted-up ditches. The baths were shut down, the theatre was a rubble-filled rubbish tip, and even the main road was ankle-deep in filth. There were none of the public buildings she would have expected in a town this size, or if they existed they were being used for something else. There were some grand houses here, but many of them were abandoned, and as they walked by Isolde saw cooking-fires set up on tessellated floors.
Damon said that in the darkest days of barbarian incursions and banditry, the army had moved its weapons workshops and depots and stock pens within the protection of the town walls. So the town had become a fortress once more, as it had been centuries ago at the beginning of its life. Now the Roman army had gone away, of course, but Saxons and other mercenaries still used the infrastructure it had left behind.
Amid the roofless shells, heaps of building rubble and lakes of sewage, there were functioning offices, however, where the town council or the provincial government still collected taxes, organised work levies and administered justice. And Camulodunum seemed to be full of churches, small but solidly built of reused stone and tile, rising out of the general rubbish like mushrooms from compost. 'There are more churches than people,' Nennius joked wistfully.
Damon picked his way along the rubbish-strewn road quite cheerfully. All this was normal to him. To Isolde and Nennius, though, the whole place stank like the vast garbage heap it was. And there were so few people that Isolde felt like a child creeping through a huge house abandoned by adults.
The bishop's palace was one of the grander buildings. It was a townhouse about thirty years old, built in something like a classical style, with separate blocks set out around an atrium. Isolde learned it had once been owned by a diocesan tax official.
Bishop Ambrosius himself was here to greet them. With receding silver hair, richly dressed in a ground-length purple robe, he was about Nennius's age, but he looked as if he could still throw a healthy punch. When he took her hands Isolde felt reassured for the first time since she and Nennius had left Rome.
After days on the road they were all hot, dirty, hungry, and the stench of the city lingered even here. There was no bath house, but the house had underfloor heating and hot water, and after an hour of pampering herself with her scents and creams Isolde felt almost human. She joined her host and his guests in a large, well-appointed triclinium.
The meal they were served relied heavily on meat, mostly mutton and pork, but there were olive oils and dates and a rather good fish oil, imports from the continent which, the bishop said, were a luxury these days. No wine, though, and Ambrosius apologised for serving them watery British beer, but it was strong enough to warm Isolde's blood.
Her father, as usual, seemed to have forgotten she was here, and made no effort to include her in the conversation, and nor did Damon. But the bishop was gracious to her, and his servant, another young monk, was attentive to her needs. In the light of the low fire, as the aches of the journey were soothed away, Isolde was content to let the talk wash over her.
Ambrosius and Nennius were churchmen of a similar age, both in their late fifties, one from the heart of the empire, the other from its now-amputated limb, and they had lived through tumultuous times. And, like all men of their age, Isolde thought fondly, they believed the world was in decline, from a Golden Age a few decades before. Born a generation after Constantine, now known as 'the Great', they spoke reverently of the first Christian emperor, whose reign had been an interval of comparative peace.
But all over the known world the weather was bad. Even within the empire the great crops of wheat and millet which fed the large urban populations began to fail. Among the barbarians, as famine descended, pulses of refugees washed out of the heart of Asia, driving others before them, to press ever more relentlessly on the borders of the empire.
Constantine himself had stabilised the border by allowing barbarian peoples to establish new homelands inside the empire's borders-vast numbers of them, for instance no less than three hundred thousand Sarmatians. This policy of 'federation' brought peace for a while, but there was much muttering about whether the empire could absorb such huge influxes.
There was trouble with the barbarians in Britain too. When Ambrosius was a boy of five, there was a 'Barbarian Conspiracy', a major invasion from several directions at once: by the Picts across the Wall, the Scots and Irish and Saxons from across the Ocean. For a whole year order was lost. Ambrosius and his family, he said, huddled inside the town walls as the children told each other blood-curdling tales of the baby-eating foreign savages who roamed the countryside.
Meanwhile after Constantine's death fratricidal war between his three competing sons brought renewed turmoil at the heart of the empire. Britain threw up usurpers, such as one Magnentius, who had killed one of the sons, only to be defeated by another, at Mursa in Pannonia. The empire once more became an arena of conflict between strong men and their armies. Then, when Constantine's treaties were repudiated by one barbarian group, the Visigoths, decades of simmering conflict finally led to battle at Adrianopolis-a battle the Romans lost, at a terrible cost.
Times had changed, and a weakened empire could no longer afford such bloodletting, and after Mursa and Adrianopolis the Roman army had never been able to recover its strength. The emperors employed barbarian federates in their armies, and still more alien peoples settled within the borders-following Constantine's precedent, but now the process was all but uncontrolled. Thus the army was barbarised, and the empire was hollowed out by foreign polities.
The British felt increasingly exposed, and its elite and officer corps threw up one usurper after another- roughly one a generation, as young rebels dreamed they could do better than their fathers. And as soon as he took power each of them headed overseas, taking yet more troops with him from the British garrison. One, grandly named Magnus Maximus-'the Great, the Greatest'-killed another emperor, and had the dubious honour of being the first western ruler to order the execution of a Christian heretic.
But the troops stripped from the British garrison by each failed rebellion, and indeed by each officially ordered transfer to reinforce the centre, were never returned. Without the army to enforce collection the taxation system began to break down. People hoarded their coins in the hope of better times, and a barter economy sprang up. But as demand dwindled there was much destitution, and Ambrosius, by now a young priest, found himself ministering to the starving poor.
Then, one New Year's Eve, a vast horde of Alans, Suebi and Vandals crossed the frozen Rhine, and pushed their way into Gaul and Iberia.
