Book of Eldritch Might II: Songs and Souls of Power (First Edition) (2002)

From Introduction:

Malhavoc is the only known mortal arcanist to have “possessed” The Book of Eldritch Might — if one can use such a term for an object that may have been an elder god trapped in the form of a tome—for any significant amount of time. We at Malhavoc Press presented much of what he found as a book of the same name, but it was only a smattering of the knowledge that the actual source contained. This new volume, Book of Eldritch Might II: Songs and Souls of Power, offers further arcane secrets and mysterious lore: classes, feats, spells, magical items, monsters, and more.