COVERT OPERATIONTime is running out for the empress as an acute condition threatens her life! And while Koyou has gained consent to perform the surgery, every movement in the palace is being watched, and enemies lie in wait around every corner. Meanwhile, vengeful Nankin factions and a royal envoy from Uhan arrive in the capital, threatening to cause a major upheaval. Does Keiun have the diplomatic skill to navigate this political minefield? And how will he fare going head-to-head with the enigmatic Uhan crown prince?