I came across several references to this book in my research of Ny'alotha. Penned by a neophyte cultist, it documents the "lies of the Titans" and the "injustices" they inflicted upon the denizens of Azeroth.
Mad ravings, intended to erode the reader's acceptance of reality.
Still, by studying this work, we can gain a better understanding of the Old God's power, and thus tailor the cloak to offer better protection against it.
Bring as many pages from this tome as you can find.