A ??? will appear on the backside of a bookshelf (not to be confused with the ??? on the desks) in the four corner rooms (H-5, F-5, H-11, F-11). Upon selecting the ??? you will receive a Tavnazian Cookbook.
The ??? stays in each room for exactly 10min Earth time (4h10m game time) and will then disappear for 10sec Earth time (4m10s game time) before appearing in the next room. Thus it is possible to check all four rooms and miss it because of this short period of being gone.
The pattern of movement is NE (H-5) -> NW (F-5) -> SE (H-11) -> SW (F-11) -> NE (H-5) and so on in that order.
Note: If you started Promathia Mission 5-3 by talking to Cid you can't start this quest until you have reached a certain point in the mission.
Note: If you have already done the quest once, to repeat just talk to Jonette and she will thank you and ask you to bring any other cookbooks you find to her. That will re-activate the quest in your log.
Jonette (Tributary, Tavnazian Safehold)
Jonette's dream is to revitalize the safehold's children by serving them an array of traditional Tavnazian dishes. However, she needs a cookbook to fulfill that dream.
SPOILER WARNING: Click here for additional details about this story line.