Peerless: Wu Shuang Books in Order

After an envoy and his escort are murdered and imperial tribute disappears, investigator Feng Xiao follows the case to a city hosting a mysterious auction. Solving it requires an uneasy partnership with brilliant rival official Cui Buqu.

Traveling west to forge an alliance, Cui Buqu and Feng Xiao stop in an oasis city divided by rival rulers. Their investigation of local mysteries reveals a conspiracy beyond the city while their competitive partnership grows increasingly complicated.

Returning toward the capital, Cui Buqu and Feng Xiao investigate a household massacre linked to a mysterious poison. With the empire potentially at risk and Cui Buqu's health deteriorating, their final case tests both their ingenuity and their relationship.