Next, go to Jonette @ (G-9) on the middle floor of the Tavnazian Safehold to receive the quest.
The cookbook that she seeks can be found in one of four rooms in the Sacrarium. A ??? will appear on the backside of a bookshelf (not to be confused with the ??? on the desks) at the (F-5)/(F-6) border, (H-5)/(H-6) border, (F-11), or (H-11). Upon selecting the ??? you will receive a Tavnazian Cookbook (Key Item). The ??? will move to another location every 4 hours 15 minutes game-time.
Take the Tavnazian Cookbook back to Jonette in the safehold for your reward.
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.