A commotion breaks out in the courtyard. Choose "Stay in the library to dust the bookshelves." This leaves you alone in the room, allowing you to search his desk for +20% Intel.
: Clean rooms adjacent to your target investigation zones first. spy mission a nobles maid guide
Return to the spymaster at the safehouse to turn in the ledger. Completing this mission flawlessly yields high-tier rewards: A commotion breaks out in the courtyard