Relic Watcher:
One piece of Kaerun's Memoir is stored in all 4 directions. If qualified, you'll know the contents of the book.
Place your hand on desk where the memoirs are located in the order of the story.
If the order of contents are correct, that desk will illuminate.
Of course, if the order is incorrect, you will be considered an intruder and watchers will come to expel you.