In this Assassin’s Creed Valhalla guide, we’ll show you where to find all three of Rygjafylke’s Abilities inside their Books of Knowledge. Our maps below will lead you to the Rage of Helheim melee Ability, and the Thorn of Slumber and Throwing Axe Fury ranged Abilities.
Rygjafylke Abilities locations
1 – Ability: Rage of Helheim
Climb about halfway up the waterfall near Kjotve’s Fortress and into the large cave hidden behind it. Smash through the ice(?) wall to collect this Book of Knowledge.
This gives you the Rage of Helheim melee ability.
(When you try to collect this, you may get an “Area not available warning.” You can just push past that to get this Ability anyway with no harm.)
2 – Ability: Thorn of Slumber
In the southwest of Stavanger’s island is another restricted area called Gryttirsand (“sandy pots”?). Climb into the tower in the middle of the outpost. Smash (or shoot) through the trapdoor, and then use the ladder to drop to the bottom. Collect the Book of Knowledge to pick up the Thorn of Slumber ability.
3 – Ability: Throwing Axe Fury
East of Marauder’s Den is another outpost named Nottfall (maybe “nut fall”?). Look for a tunnel at the south edge of town. Climb over the wall at the end (the door is barred, so just go around it) to collect this Book of Knowledge and pick up the Throwing Axe Fury ability.