Scoundrel's Journal is a tome in the first act of Diablo III. It is written by Lyndon, and is needed to complete the achievement A Quick Study. The tome can be found in the Fields of Misery, just before the Old Mill.
It reads as follows:
- "After much searching, I have found a promising lead. A family near New Tristram has obtained a valuable relic, and poor fools that they are, they haven't the slightest idea what to do with it! I have some idea of what to do with their daughter, though... and through her, I'll get my prize."