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Summoners journal

Location of the journal.

A Summoner's Journal is dropped by a Cultist found performing a ritual on the bodies of four khazra in the Southern Highlands of the first act of Diablo III. Collecting it will add to the Taking Notes achievement.

It reads as follows:

Maghda is a fool. I will raise an army of souls from these primitives and chain them to my invincible will.
Yes, with these heathens at my command, the kingdoms of the world shall bow to the might of...The Lord of Goats!
I may have to work on the title a bit more.
~Dark Cultist