Reply from Cultist Grand Inquisitor
From Diablo Wiki
Only one of your characters needs to find the journal for you to be credited with it.
To find out which journals you have found so far go to your Achievements list (press Y) and check:
- Campaign > Act I > Taking Notes
|Found in the Halls of Agony below Leoric's Manor in Act I on a Musty Lecturn.|
|Part||Text||Found on Quest|
|1||Of all the abominable stalling! In case it was not clear, I need the sacrifices now. I have heard enough of your idle complaints that the villagers have fled from the Highlands, leaving no one left to sacrifice. You'd best come up with something, or it's your hide we'll be flaying. -- Grand Inquisitor||Any|
Reply from Cultist Grand Inquisitor is in some way involved in the following achievement(s).
| Taking Notes
|10|| Read the following Quest lore books in Act I.
| Books & Lore of the
|Tomes - Lore Books  In-game: People World/Quests Bestiary Diablo I & II Extra: Manuals/Other Novels History|
|Diablo I Tomes||Diablo II Tomes|
|Diablo I Manual||Diablo II Manual||D2: LoD Manual||Diablo III Manual||Other sources|
Abd al-Hazir (Writings)
|Diablo novels||The Sin War Trilogy||Diablo III novels||Diablo comics||Other books|