Book of Knowledge

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A Book of Knowledge on a lectern

A Book of Knowledge is the name given to an illuminated manuscript containing information on particular combat skills, be it ranged or melee. Save for a few exceptions, almost every skill was written about in such detail that the contents had to be split into two volumes which were kept separate from each other, though whether it was to make work easier between limner teams or to prevent concentration of knowledge is unclear. The texts were particularly valuable to both the limners who made them and to any people who sought them out, and as a sign of this, the books were often kept on lecterns with a marble base and backing, open for ready access .

In the late 9th century, during her many travels in Europe, the Raven Clan Viking Eivor Varinsdottir read a number of these books and expanded her skillset. Many of these books were found inside churches like the Cliffside Monastery or the Kells Abbey, fortresses like Dover Fortress, or abandoned sites such as the Hidden Ones' former bureau at the Diodurum Ruins. While exploring her visions of Odin's genetic memories in Svartálfaheimr, she also read four more of the books and maintained those skills when she woke.

Known Books of Knowledge

Ability	Description	Book location(s)
Axe Blizzard	Contained instructions on how to release a barrage of throwing axes. Its second volume taught how to add more axes.	Southeast of Northwic, East Anglia, England
		Wincestre Garrison, Wincestre, England
Battle Cry	Contained instructions on how to gain strength and inspire fear in enemies by screaming aloud.	Cliffside Monastery, River Dee, England
Berserker Trap	Contained instructions on how to attach a pack of hallucinogenic powder to an arrow.	Riverside Monastery, River Dee, England
Blinding Rush	Contained instructions on how to move undetected using stamina. Its second volume taught how to remain unseen while assassinating targets.	Ruined Tower, East Anglia, England
		Chertsey Abbey Ruins, Suthsexe, England
Dive of the Valkyries	Contained instructions on how to leap into the air and strike from above. Its second volume taught how to stun enemies caught in the impact radius.	Isle of Ely Monastery, Grantebridgescire, England
		Lolingestone Bandit Camp, Cent, England
Explosive Retreat	Contained instructions on how to leap back and trigger an explosion where one once stood. Its second volume taught how to briefly decrease incoming damage after retreating.	Hreidmar Palace, Gullnámar
		Sol-ok-Mani Vault, Svaladal
Feign Death	Contained instructions on how to fool enemies by playing dead. Its second volume taught how to assassinate enemies from a prone position.	Leah Villa Garrison, Oxenefordscire, England
		Aelfwood, Glowecestrescire, England
Focus of the Nornir	Contained instructions on how to aim a bow and loose an arrow with unnatural quickness. Its second volume taught how to increase the arrow's damage.	Offchurch, Ledecestrescire, England
		Bolingbroc Castle, Lincolnscire, England
Golden Flame	Contained instructions on how to attach an explosive pack to an enemy. Its second volume taught how to shove the rigged enemy away as an impromptu shaped charge.	Diodurum Ruins, Melunois, Francia
		Compendium, Amienois, Francia
Goule Breath	Contained instructions on how to lace an arrowhead with lethal poison. Its second volume taught how to attach a pack that released poison clouds.	Pont-de-l'Arche, Evresin, Francia
		Champlieu Ruins, Amienois, Francia
Harpoon Impalement	Contained instructions on how to impale enemies with a harpoon and throw them with the tether. Its second volume taught how to reel in the enemy for a finishing blow.	Venonis, Ledecestrescire, England
		Sancta Helena's Church, Colcestre, Essexe, England
Incendiary Powder Trap	Contained instructions on how to attach an incendiary pack to an arrow. Its second volume taught how to improve the pack's chemical mixture to permit a second use.	Walden, Grantebridgescire, England
		Briggworth, Suthsexe, England
Irish Wolfhound	Contained instructions on how to briefly call an Irish wolfhound to one's aid. Its second volume taught how to train the dog to stay longer.	Tuam, Connacht, Ireland
		Bally na Gall, Ulster, Ireland
Kick of Týr	Contained instructions on how to deliver a kick that sent enemies flying back. Its second volume taught how to improve kicking power so enemies stayed down.	Threaded Pass, Eurvicscire, England
		Ulkerthorpe Fort, Snotinghamscire, England
Knockback Arrow	Contained instructions on how to loose an arrow and knock back an enemy. Its second volume taught how to increase the arrow's impact so that a hit enemy could stagger their comrades.	Old City, Uldar
		Fidsthorp workshop, Svaladal
Man's Best Friend	Contained instructions on how to briefly call a wolf to one's aid and train it to stay longer.	Crepelgate Fort, Lunden, England
Mark of Death	Contained instructions on how to loose a volley of arrows. Its second volume taught how to strike more targets in a single volley.	Meldeburne, Grantebridgescire, England
		Alrekstad, Hordafylke, Norway
Percussion Arrow	Contained instructions on how to strike an enemy's shield with an arrow and knock back enemies caught in the impact radius.	Festering Valley, River Berbha, Ireland
Piercing Shot	Contained instructions on how to loose a piercing arrow. Its second volume taught how to increase the arrow's damage.	Templebrough Fort, Ledecestrescire, England
		Lincoln, Lincolnscire, England
Plague of Rats	Contained instructions on how to attach a pack of bait to an arrow and attract voracious rats. Its second volume taught how to increase the bait's potency to attract more rats.	Gisacum Ruins, Evresin, Francia
		Plague District, Paris, Francia
Poisonous Powder Trap	Contained instructions on how to attach a pack of powdered poison to an arrow. Its second volume taught how to improve the pack's chemical mixture to permit a second use.	Petuaria Ruins, Eurvicscire, England
		Odin Mine Hideout, Snotinghamscire, England
Precision Axe Throw	Contained instructions on how to throw an axe at an enemy's weak point.	Stag's End, River Erriff, Ireland
Rage Axe	Contained instructions on how to perform a series of strong axe blows followed by an uppercut punch. Its second volume taught how to knock the enemy back after the uppercut.	Har Smida, Uldar
		Alethorp, Vangrinn
Rage of Helheim	Contained instructions on how to slam enemies into the ground and deliver a barrage of punches. Its second volume taught how to increase the speed of punches delivered.	Kjotve's Fortress, Rygjafylke, Norway
		Archives, Jorvik, England
Raven Distraction	Contained instructions on how to briefly call on Sýnin to distract an enemy. Its second volume taught how to train the raven to stun the target.	Tonnastadir, Ledecestrescire, England
		Belesduna Bandit Camp, Essexe, England
Rush & Bash	Contained instructions on how to grab and pick up enemies while charging forward. Its second volume taught how to attack stunned enemies after charging them into a wall.	Ravensburg, Grantebridgescire, England
		Dunwic, East Anglia, England
Shoulder Bash	Contained instructions on how to perform a shoulder bash that breaks objects and knocks back enemies.	Island Monastery, River Severn, England
Smoke Bomb Arrow	Contained instructions on how to attack a smoke screen pouch to an arrow. Its second volume taught how to improve the pack's chemical mixture to burst into flame.	Lambay Abbey, Dublin, Ireland
		Clogher, Ulster, Ireland
Spinning Harpoon	Contained instructions on how to perform a spinning attack before using the harpoon to finish an enemy.	Ferrières, River Rhine, Francia
Split Shot	Contained instructions on how to loose ten arrows in a cone-shaped radius. Its second volume taught how to increase the arrows' strength to knock back enemies.	Tjarnar Mylna, Svaladal
		Hvithus, Vangrinn
Thorn of Slumber	Contained instructions on how to attach a sedative pack to an arrow to make targets instantly fall asleep. Its second volume taught how to improve the pack's chemical mixture to burst into a sedative cloud.	Gryttirsand, Rygjafylke, Norway
		Dover Fortress, Cent, England
Throwing Axe Fury	Contained instructions on how to hurl throwing axes at all enemies in range. Its second volume taught how to stagger enemies hit by the axes.	Nottfall, Rygjafylke, Norway
		Caustow Castle, Sciropescire, England
Vengeance of Thor	Contained instructions on how to reserve power for a single, unstoppable attack. Its second volume taught how to use power more efficiently to deliver a second, even stronger attack.	Oxeneforda, Oxenefordscire, England
		Thieves' Warren, Glowecestrescire, England
Vikingr Salute	Contained instructions on how to deliver a devastating headbutt. Its second volume taught how to incapacitate enemies longer with one strike.	Kells Abbey, Meath, Ireland
		Dunseverick, Ulster, Ireland

Behind the scenes

The Books were represented in the Animus map function by a closed book with an enlarged Elder Futhark rune Ansuz, "ᚨ", on the cover.

Gallery

A Book of Knowledge in an abandoned hall

A Book of Knowledge at a work station

Appearances

• Assassin's Creed: Valhalla (first appearance)
  • River Raids
  • Wrath of the Druids
  • The Siege of Paris
  • Dawn of Ragnarök