Story Structure — 4 Plot Phases
Escape from the Mercury Passage
Song Ci escapes a mercury-filled tomb passage by reasoning from the body's organs to the tomb's layout. In the main chamber, he examines a preserved corpse and infers the deceased's palace service and hard labor.
Key Events
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Mercury-Filled Passage — The exploring group is trapped in a passage filled with flowing mercury. Characters: Song Ci
Location: Ancient tomb passage
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Anatomical Exit Deduction — Song Ci reasons that the tomb follows the body's organs and seeks an exit above the kidney passage. Characters: Song Ci
Location: Ancient tomb passage
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Preserved Corpse Examined — Song Ci examines a remarkably preserved corpse and finds clues to the deceased's palace service and hard labor. Characters: Song Ci
Location: Tomb main chamber
A Hanging That Was Not Suicide
Song Ci begins a new investigation in Longya County with Tang Xiaowan and Lu Zhengxian. A county officer's hanging appears inconsistent with suicide when Song Ci examines the position of the feet.
Key Events
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Investigation Moves County — After the tomb discovery, Song Ci turns his attention to a new investigation in Longya County. Characters: Song Ci
Location: Longya County
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County Investigation Begins — Song Ci investigates with Tang Xiaowan, an experienced body examiner, and Lu Zhengxian, a county constable. Characters: Song Ci, Tang Xiaowan, Lu Zhengxian
Location: Longya County
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Death Attributed to Suffocation — The county investigation includes a death initially attributed to suffocation. Characters: Song Ci, Tang Xiaowan, Lu Zhengxian
Location: Longya County
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County Officer Questioned — Song Ci's investigation questions a county officer whose pregnant partner is at home. Characters: Song Ci
Location: Longya County
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Hanging Deemed Murder — The officer is found hanged; Song Ci concludes the foot position contradicts suicide. Characters: Song Ci
Location: Longya County
Bones Beneath the Dragon King Tale
The investigation turns to children supposedly sacrificed to the Dragon King. Evidence from bones recovered from a well indicates killings with sharp metal weapons, and Song Ci exposes the divine-punishment account as a cover for murder by Lin Qianzhi.
Key Events
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Dragon King Sacrifice Mystery — The investigation leads to claims that children were sacrificed to the Dragon King. Characters: Song Ci, Tang Xiaowan, Lu Zhengxian
Location: Longya County
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Bones Retrieved from Well — Song Ci retrieves the children's bones from a well for examination. Characters: Song Ci
Location: Well in Longya County
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Sharp-Weapon Evidence — Song Ci presents evidence that sharp metal weapons killed the children before their deaths. Characters: Song Ci
Location: Longya County
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Divine Punishment Exposed — Song Ci reveals that the Dragon King story disguises human murders and identifies Lin Qianzhi as responsible. Characters: Song Ci, Lin Qianzhi
Location: Longya County
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Plague Investigation Connected — Song Ci connects the crimes to an earlier plague and a concealed investigation by a local registrar. Characters: Song Ci
Location: Longya County
A Death Left Unresolved
After reflecting on former companions, Song Ci learns that Lu Zhengxian has died in a fire. Tang Xiaowan challenges the apparent accident, and examination clues leave the cause of Lu's death under investigation.
Key Events
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Former Companions Recalled — After the investigation, Song Ci reflects on former companions while speaking with the registrar. Characters: Song Ci
Location: Registrar's presence
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Lu Zhengxian Dies in Fire — A fire kills Lu Zhengxian; a fallen candle and spilled wine appear to suggest an accident. Characters: Lu Zhengxian
Location: Unspecified location
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Tang Challenges Accident Theory — Remembering her bond with Lu, Tang Xiaowan refuses to accept the fire as a sufficient explanation. Characters: Tang Xiaowan, Lu Zhengxian
Location: Lu Zhengxian's body
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Body Examination Requested — Tang Xiaowan asks to examine Lu's body, and Song Ci supports her request. Characters: Tang Xiaowan, Song Ci, Lu Zhengxian
Location: Lu Zhengxian's body
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Cause of Death Questioned — The mouth-and-nose scent and lack of expected inhaled debris raise doubts about the fire as the sole cause. Characters: Song Ci, Tang Xiaowan, Lu Zhengxian
Location: Lu Zhengxian's body