All summer, Agrippina learned from the talk, just as Cunedda had told her, traders and spies had been bringing back rumours about a build-up of Roman arms and men in the Gallic coastal town of Gesoriacum. The princes and other local rulers had fitfully prepared for an invasion, drawing up their warrior bands on the coast to fend off Roman landings - only to disperse again, bored and hungry. Perhaps, after ninety years of impunity, nobody had really believed that the Romans would ever come again. Meanwhile the princes had continued their wilful ways with the Catuvellaunians’ neighbours.

And now the storm had broken. The Romans had landed after all, late in the season, unopposed, and were already moving out of their beachhead. There was a good deal of argument about whose fault all this was. Had the princes been foolish in their truce-breaking aggression? Should they have prepared better for the invasion, and listened to the warnings of their spies? Agrippina couldn’t find it in her heart to blame the princes, who had at least tried to assemble a force in response. Even she, who knew Romans far better than they did, had not believed the invasion would come.

There was no eagerness for a battle. This place was named for a war god, for Camulos. But for all the knives in their belts and the swords they hung on the walls of their wooden houses, for all their myths of themselves as a warrior people, these were farmers. Agrippina could see that even now some of them were growing restless, itching to get away from this purposeless talk and back to work. But their princes, restless as they were blamed for their unpreparedness, were now spoiling for a fight.

At length Nectovelin stood up. Even the princes hushed as the massive warrior waited for silence. ‘From what I’m hearing I’m glad I had a good night’s sleep instead of enduring all this waffle. The question is not who is to blame but how we are to get rid of the Romans now they’re here.’

‘The old man is right.’ The interruption came from one of the druidh. He was a thin young man in a shapeless black robe, and his accent was of the west country, of the Silures or the Ordovices. ‘This land is sacred, and must remain inviolate.’

Nectovelin was irritated. ‘Everybody knows your game, priest. The Romans drove your sort out of Gaul, and you fled here because you have nowhere else to go. Now the Romans are coming after you again, and you want to spill our blood to save your own cowardly hides. Isn’t that true?’

In fact Agrippina thought Nectovelin was unfair. It was the priests’ own laws which made it impossible for them to submit to Roman rule. In their way, the druidh had integrity, even if it was suicidal.