Zhao Lian is a sheriff without a county. A member of an old magical order called the Shuli Go, she was raised to uphold the law and protect her fellow citizens. But after her caste was disassembled, she was left with no choice but to wander in search of work for someone with her very particular set of skills. In her wandering she's brushed against the full breadth of the Central Empire's populace: nobles, peasants, and everyone in between. The only group she's had little to do with are students: a group that rarely needs her services. Then one night a march of philosophers, scientists, and students crosses her path, giving Lian a chance to flex the muscle she often finds herself using least: her mind.