‘Down there?’ Macro whispered.

‘Sa. You come, but shhh!’

As they made their way silently along the track, darkness closed in on them, impenetrable as ink, and the air seemed to grow yet colder, with a clammy edge to it now. Cato counted the paces he took, trying to keep a clear mental image of the island as they penetrated further. Soon after he had counted a hundred, the trees opened out, admitting a welcome faint glow from the stars. The path ended abruptly at a wooden screen, within which was a door. It was held closed by a simple latch operated by a pull rope. For a moment Prasutagus listened, but the heart of the island was as oppressively silent as its fringes, and the only sound Cato could detect above the rapid pounding of his heart was the occasional booming of a bittern away in the marshes. Prasutagus gently pulled on the rope, the latch eased up and he nudged the door open. He stepped through, leaving the two Romans squatting at the side of the entrance; a moment later his head reappeared and he beckoned to them.

Beyond the screen, a large clearing opened out. It was roughly circular and lined with thatched huts. The ground was bare and hard; the army boots of the two Romans clumped on its surface for the first few paces before Cato and Macro took care to set each foot down as softly as possible. Dominating the centre of the clearing was a huge circular hut, in front of which was a raised platform. A carved wooden chair of immense proportions rested on the middle of the platform, and fixed to the tall backrest was the biggest pair of antlers Cato had ever seen. In front of the platform stood the remains of a fire in a huge iron grate. The dying embers imparted a faint orange hue to the wisps of smoke curling up into the night.

Nothing moved in the clearing. None of the torches was lit in the iron stands positioned in front of every hut. There was no sign of life. And yet a brooding presence seemed to hang over the clearing, as if they were being watched from every shadow. Not that Cato sensed a trap of any kind, just a feeling that their presence had been sensed by somebody, or some thing. Silently they made their way to the entrance of the first hut and crept inside. It was dark, too dark to make out any details, and Macro cursed softly.

‘It’s no good, we need some light,’ he whispered.

‘Sir, that’s madness!’ Cato hissed. ‘We’d be seen at once.’

‘Who by? There’s no one here. Hasn’t been for hours — look at the fire.’

‘Then where are they?’

‘Ask him.’ Macro jerked a thumb at Prasutagus.

The Briton got the gist of the question and shrugged. ‘Druids gone. All gone.’