Cain's Old Journal is a manuscript divided into two parts in Diablo III, both of which are found in the first act of the game. Each part can be found in an Old Keepsake Box along the Old Tristram Road or in The Old Ruins. Both parts add to A Quick Study achievement.
The journal was written by Deckard Cain during the Darkening of Tristram.
The parts read as follows:
- Part 1
- I can no longer deny the true nature of the evil that rises from the depths of the cathedral. It is almost too horrible to admit the truth of it. It is the dark Lord of Terror, Diablo himself, who plagues us.
- Part 2
- The vile staff of Lazarus was brought to me today, confirming my suspicions. There is no longer any doubt that Lazarus kidnapped Albrecht and perhaps even freed Diablo from his ancient prison. Who knows what further treachery he has planned?
Collection[]
This journal is one of many different lore books that can be contained in Old Keepsake Boxes, which appear only once or twice per session in an under-traveled area of the game world. Because of this, the chance is quite low to "naturally" find the second part of the journal in a replay of the campaign in a new season - it usually must be specifically hunted (in either game mode).
Gillian's Diary has a similar issue, and is also required for the achievement A Quick Study.