Zhang Xiaojing, Tan Qi and Yisi go to Liu’s Bookshop. The person who answers the door at the bookshop is the Fire Master of a paramilitary organisation and Zhang Xiaojing’s former comrade-in-arms, Ding Laosan. Long Bo safely retreats from Peacekeeper Corps with Yu Chang and the rebel fighters. Mass casualties and the intense blaze turn Peacekeeper Corps into an inferno, burning every file in the archives to ashes. Li Bi mixes with the crowd and continues to track the paramilitaries, not realising that Long Bo is following his every move.
张小敬和檀棋、伊斯来到刘记书肆，开门的正是守捉郎的火师，而这个人竟是张小敬的老战友丁老三。龙波带着鱼肠和一众蚍蜉从靖安司全身而退，而靖安司内一片尸山火海伤亡惨重，所有的资料都被大火焚毁。李泌混在人群中独自追踪守捉郎，却不知自己早已被龙波发现。靖安司被烧圣人震怒，太子趁机让圣人将这难办的案子交给林九郎来办理，林九郎要求吉温一个时辰之内交出人犯。吉温与王韫秀勾结，诬陷张小敬是凶手，吉温以新任靖安司司丞的身份调动右骁卫全城缉捕张小敬。
