In Assassin's Creed: Valhalla you can acquire upgrades that will give you additional abilities. This way you don't have to rely only on the attacks you unlock on the skill tree. In the game, you will find special secrets from the Ability category - upon finding them you will receive new skills that will make the combat easier. On this page of our guide, you will find out where the Abilities are located in the Hordafylke region.
Mark of Death
The skill Mark of Death can be found in the southern part of the Hordafylke map, in Alrekstad.
Before you start looking for the book, go to the pigs. In their droppings, you will find the key you need to get to the book.
The book is in the cave. You will get to it through a hole in the boards. There should be no problem with that.
Reach the door at the end of the cave. There will be no danger there. You simply have to open the door with the key and then move on to the next room. You will immediately see a book that will give you a new skill.
With the Mark of Death, you can mark multiple opponents simultaneously and kill them with a salvo.