There is a book of knowledge in Belesduna Bandit Camp of Essexe in Assassin’s Creed Valhalla.
This book will grant you the ability of Raven Distraction.
Here’s how you can get the book of knowledge in Belesduna Bandit Camp in AC Valhalla.
To begin, get to the location shown below, marked by the book symbol.
When you reach the area, you will see a ton of enemies in the compound.
How to get the book of knowledge
To get the book, you need to first destroy the weak wooden planks at the front of the building.
This reveals a window and it will allow you to shoot at the bar on the door.
Go to the front of the door and you’ll now be able to open it.
Take the book and you’ll get the Raven Distraction ability.