|1||December 15 - 31. After defeating Ginosha-Zanak (Ancient Quarry boss), explore the boss area again.|
|2||December 1. Purchase from the Celdic's General Store - Cornette.|
|3||December 9, Bareahard's Underground Waterway. After defeating the Abyss Drome, explore the same spot.|
|4||December 23, Roer's Airport. After clearing the "Gone Air" quest, speak to Norton.|
|5||December 27. Lohengrin Castle, southwest corner.|
- They are only collected during the game's New Game Plus.
- The books were written in ancient script, which are later decoded by Thomas Lysander.
- Collecting and handing them all to Instructor Thomas and reading the Decoding Report will unlock a hidden event before the final battle, revealing further spoilers.
- Unlocking the hidden event and reading the books will earn the Scholar of the Truth bronze trophy.
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