Dropped by level 42-55 humanoids.
You must have a Libram of Voracity in your backpack to enable the repeatable quest for the first time.The needed Crystal Force is obtained with 10 each and at the Eastern Crystal Pylon in Un'Goro Crater. (6 Crystal Force crystals are produced as a result.)
<The pages are covered in ancient elven runes.>
The pages herein contain memories of events that transpired in the collection and creation of the reagents required to craft lesser arcanum.
May our enemies never gain access to these libram.
May I live to see the pallid light of the moon shine upon Quel'Thalas once again.
May I die but for the grace of Kael'thas.
May I kill for the glory of Illidan.