A palace servant trained in herbal medicine finds herself in the heart of imperial intrigue in this enthralling period mystery! Outside of her official duties, Maomao helps friends and acquaintances in the rear palace. Xiaolan needs a new job after her term of service ends, and Consort Lishu is convinced she's seen a ghost! Then, when complications arise with Gyokuyou's pregnancy, Maomao realizes her skills are inadequate to handle the life-threatening situation. Although Maomao knows someone who can help, they haven't been welcome in the rear palace for a very long time... Maomao also begins to connect the dots between seemingly unrelated incidents in the rear palace. Will knowing too much put her life in danger?