From Segedunum in the east, Robson sets off on his 84-mile journey. He discovers the boyish thrill of geocaching, sees how some locals repurposed the wall for their own needs, and has a dip in the River Tyne.

Robson travels from Chollerford to Walltown Crags, and learns more about how the Romans took care of themselves so far from home. He samples natural cuisine and checks out the spa at Chesters Fort, before paying a visit to the latrines of Housesteads Fort, which were once the envy of an empire. He goes on to pit his fishing abilities against an angling rival, gladiator-style, before climbing Steel Rigg to reach the route’s highest summit.

Robson gears up for the remaining 46 miles of his trek along Hadrian’s Wall. After an early start in the shadow of Winshield Crags he crosses the border from Northumbria to Cumbria at Gilsland, where he finds playful graffiti from the Romans. Moving on, he learns how to link a Cumbrian sausage, takes to the skies for a bird’s-eye view of Carlisle, and finally reaches the end of his journey at Bowness-on-Solway. Last in the series.