Assassin’s Creed Valhalla: All Book of Knowledge Locations (Abilities)

Focus of the Nornir – Ofchurch, Ledercesterscire

Head to the location above and use your Odin’s Sight to ping the Book of Knowledge. You’ll find it easy enough.

Ranged Poison Strike – Assassin’s Bureau

No location for this one since it’s given to you by Hythem after making some headway taking out some Order of the Ancients.

Incendiary Powder Trap – Walden, in the Church

Head to the location above and use your Odin’s Sight to ping the Book of Knowledge. You’ll find it easy enough.

Rush & Bash – Ravensburg, Top of the Fort

For this ability you’ll need to eliminate the guard for the key.