Have you ever wandered along a path and started to think about who was walking there millennia ago? Whose works reside under every field or hill and whose bodies lie under our steps? Beneath our feet the world laboured on only metres from our grasp and, ignorant, we pass by. For Colin, gripped in emotional turmoil, nothing could have been further from his thoughts until he is dragged back into his own past there to toil, to explore and to love. Deep in the past of iron-age river dwellers he sees the pagan rites of his forbears and the Roman incursion that will change them for ever.