Dark Night

A series of bizarre locked-room murders takes place in the new city. A real estate developer is found suffocated at his desk, with no marks on his neck, the doors and windows locked from the inside, and not a trace of the killer at the scene. Yu Jiang, head of the major crimes unit, joins forces with forensic pathologist Lin Yanjin, technical specialist Chen Kefan, profiler Han Han, and precinct captain Ye Shihan to investigate. From the cold corpse and the perfect locked room, they unravel a high-IQ crime constructed using physics and chemistry: suffocation by liquid nitrogen and a door locked through the contraction of metal. The killer has calculated every step, trying to make it look like suicide.

As blind spots in the surveillance footage and suspects emerge one by one, every clue seems to lead into a trap. This is no simple revenge killing, but a long-planned battle of wits. When the locked room is finally breached, an even greater conspiracy and murderous intent are waiting in the shadows…

Character relationships: This story is connected to the previous book, In Sync with the Wind,

so Shu Yi would like to explain the characters' relationships to everyone.

· Lin Yanjin is Lin Yi's biological older sister, seven years older than Lin Yi.

· Chen Kefan is Chen Hengqing's biological older brother, six years older than Chen Hengqing.

· Han Han is a senior in the same department as Pei Qingyu.

· As for Yu Jiang, you'll have to wait and see…

· Chapters 1–3 form one case (Case 1): Death in a Locked Room

· Chapter 4 is a standalone case (Case 2): A Bloodstained Youth

· Chapters 5–7 form one case (Case 3): Fall Behind the Fog

· Chapters 8–10 form one case (Case 4): Ashen Bones, Drilling Shadows

· Chapters 11–13 form one case (Case 5): Rouge Red, Alkaline Words

· Chapters 14–16 form one case (Case 6): The Puzzle's Funeral Song

· Chapters 17–19 form one case (Case 7): The Time-Difference Cage

· Chapters 20–23 form one case (Case 8): The Shadow Devours the Heart

· Chapters 24–26 form one case (Case 9): Heart Vault: The Red Auction

· Chapters 27–28: Extra Chapters 1 and 2

· Chapters 29–31 form one case (Case 10): Echoes of a Guilty Mark

· Chapters 32–34 form one case (Case 11): The Marionette on a String in the Mirror

· Chapters 35–37 form one case (Case 12): The Coffin's Song Returns to Dust

· Chapters 38–39 form one case (Case 13): The Bone Flute Weeps for Sin

· Chapter 40: Extra Chapter 3

· Chapters 41–43 form one case (Case 14): Sweet Face, Blade at Heart

· Chapters 44–46 form one case (Case 15): Clear Pain Stains the Heart

· Chapters 47–50 form one case (Case 16):

Murder in Echo Tower

· Chapters 51–53 form one case (Case 17): The Breathless Door of Death

· Chapter 54: Extra Chapter 4

· Chapters 55–58 form one case (Case 18):

Brain Seal: The Sliced-Up Locked Room

· Chapter 59 is a standalone case (Case 19): Palm Seal: The Bone-Finger Chandelier

· Chapter 60 is a standalone case (Case 20): Eye Seal: The Pupil Door Curtain

Cases 18, 19, and 20 form a single series.

· Chapter 61 is a standalone case (Case 21): The Lost Book's Wrongful Judgment

· Chapter 62 is a standalone case (Case 22): A Fatal Delivery

· Chapters 63–69 form one case (Case 23): Guilty of the Same Crime

· Chapters 70–72 form one case (Case 24): The Out-of-Order Timetable

· Chapters 73–75 form one case (Case 25): Echoes from the End Room

· Chapters 76–77 form one case (Case 26): The Deep-Sea Staircase

· Chapters 78–79 form one case (Case 27): The Fog Island Lighthouse

· Chapter 80: Extra Chapter 5

· Chapters 81–83 form one case (Case 28): The Butterfly Trapped in a Paper Cage

· Chapters 84–86 form one case (Case 29): A Body Abandoned with a Number Tag

· Chapters 87–89 form one case (Case 30): Resonance in the Shadow Building

· Chapters 90–94 form one case

(Case 31): Breathing in the Morgue

· Chapter 95 is a standalone case (Case 32): Midnight Listening: Death in Reverse

· Chapter 96 is a standalone case (Case 33): Frozen Red Mark: The Below-Zero Countdown

· Chapter 97 is a standalone case (Case 34): Tunnel Red Flash: Countdown to a Killer Blow

These three cases also form a series, all connected to the high-school detective trio.

· Chapter 98 is a standalone case (Case 35): Neon Arcade: Fatal Challenge

· Chapters 99–100 form one case (Case 36): Old Book Warehouse: Death by the Scent of Ink

· Chapters 101–104 form one case

(Case 37): Blank Street: The Faceless Shadow Collector

· Chapters 105–106 form one case (Case 38):

Blank Echoes: Shadows Returned to Their Places

· Chapter 107 is a standalone case (Case 39): Red Stains in the Laundry Room

· Chapters 108–109 form one case (Case 40):

Bodies Abandoned at a Crossroads: Terror in the Wrong Box

· Chapters 110–111: Extra Chapters 6 and 7

· Chapters 112–113 form one case (Case 41):

Document Trial: The Unsent Suicide Note

· Chapters 114–117 form one case (Case 42): The Vanishing Witness: A Closed Loop on a Rainy Night

· Chapters 118–121 form one case

(Case 43): The Creepy Shadow of the Fetal Lamp: The Red-Cord Baby's Cry

· Chapters 122–123 form one case (Case 44): Special Case No. 44

· Chapter 124: Extra Chapter 8

· Chapters 125–127 form one case

(Case 45): The Silent Wind Chime

· Chapters 128–129 form one case (Case 46):

Midnight Login Tone

· Chapters 130–131 form one case (Case 47): Special Case No. 47

· Chapters 132–133 form one case (Case 48): AI Livestream

· Chapters 134–140 form one case (Case 49):

The Secret of the Bus

· Chapters 141–142 form one case (Case 50): Thunder Hidden in the Banquet's Sound

· Chapters 143–145 form one case

(Case 51): The Memory Pawnshop

· Chapters 146–148 form one case

(Case 52): The Food Delivery Killer

· Chapter 149: Extra Chapter 9

· Chapters 150–152 form one case

(Case 53): Forbidden Campus Files

· Chapters 153–155 form one case

(Case 54): The Campus Ghost's Canteen

· Chapters 156–157 form one case (Case 55):

Deep-Sea Rift at the Aquarium

· Chapter 158 is a standalone case (Case 56): Bones Cry in the Hot Spring

· Chapters 159–161 form one case

(Case 57): Ghostly Night Patrol: The 24-Hour Convenience Store

· Chapters 162–163 form one case (Case 58): The Swallowing Staircase

· Chapters 164–166 form one case

(Case 59): Cold Storage: Silent Breathing

· Chapters 167–169 form one case

(Case 60): Silent Testimony

· Chapter 170: Extra Chapter 10

· Chapters 171–173 form one case

(Case 61): Shadow Building No. 61

· Chapters 174–176 form one case

(Case 62): Mirror Coffin: The Faceless Man

…

“The story of the new city will never end.”

Theme: Mystery.