From the article:
For the first time, I felt like I was peeking through the curtains of time. This was the very same route as Boudicca and her army would have taken.
The trundling carts passed along here. The Iceni, grimly determined and driven by vengeance, would have walked with Boudicca at their head, a vast procession of men, women, children and horses spread wide across the road and beyond into the fields, knowing that with every step, they were closer to justice, or at least their version of it.
Walking in their footsteps, I could feel the butterflies in my stomach, the feeling that every step was into the unknown. That evening, as I soaked in a hot bath at a Colchester hostelry, I reflected on what Boudicca and her cohorts did to the Roman capital when they reached it.