Dark Avenger

9 books. Every source is listed: one book often drops from several monsters and at different chances.

Lvl	Skill	From whom	Where	Chance	With premium
40	Life Scavenge	Giant Fungus 40	Sea of Spores	0.25%	0.38%
40	Reflect Damage	Karul Bugbear 40	Hunters Valley, Aden Territory	0.25%	0.38%
40	Summon Dark Panther	Timak Orc Archer 41	Timak Outpost	0.25%	0.38%
43	Hamstring	Tanor Silenos Grunt 42	Tanor Canyon	0.25%	0.38%
46	Corpse Plague	Tanor Silenos Warrior 46	Tanor Canyon	0.25%	0.38%
46	Horror	Tanor Silenos Warrior 46	Tanor Canyon	0.25%	0.38%
69	Deflect Magic	Doom Warrior 67	Field of Massacre, Aden Territory, The Cemetery	0.25%	0.38%
70	Fortitude	Conjurer Bat 69	Aden Territory, Blazing Swamp, Field of Massacre	0.25%	0.38%
75	Anti Magic Armor	Hames Orc Shaman 74	Blazing Swamp, Aden Territory	0.25%	0.38%