In Assassin's Creed Valhalla, you may come across Rigsogur Fragments, which are a type of collectibles in the game. On this page of the guide, you will learn where to find the collectible and how to reach it. This will make it easier for you to max out the Essexe region.
The eighth page of the saga can be found on the city of Colcestre.
The fragment is located in the building, on the upper floor. You can reach it by climbing the column. You shouldn't be bothered by any opponents - obtaining the treasure will be easy.