THE DECODER'S FIELD MANUAL · PREDICTIVE KILL EDITIONGet the manual

HELIXSIGHT: PREDICTIVE EVENT NOTIFICATION

SUBJECT: THE READER.

RISK SCORE: █████

PREDICTED OUTCOME: OBSERVATION

PRV-EXEMPT

NINTH ETHER STUDIOS · CASEWORK SERIES

SEE IT BEFORE LENA SAYS IT.

Ten cases from the files of Detective Lena Thorne. Real evidence from KILL CODE: screens, ledgers, notes and crime-scene photos. Your job isn't to solve them. It's to see them.

Try Case 01 free
The Decoder's Field Manual Predictive Kill Edition Volume 1 cover

THE METHOD · EIGHT PASSES

Observe first. Reason second. Do not skip ahead.

  1. 01Observation (no interpretation)
  2. 02Anomaly Detection
  3. 03Foregrounding
  4. 04Minimal Symbolic Tools
  5. 05Narrative Compatibility
  6. 06Multiple Hypotheses
  7. 07Uncertainty & Alternatives
  8. 08Synthesis Without Conclusion

Every case is scored out of 24 with the same rubric, from Reactive Viewer to Pattern-Literate Thinker.

CASE 01 · FIELD TEST

Find what doesn't belong.

One element on this screen matters more than the red ones. Tap it.

CASE INDEX · SPOILER CONTROLLED

Ten cases. In story order. No spoilers past your chapter.

01

The 3:07 Alert

SAFE AFTER CH. 1
02

The Yellow Envelope

SAFE AFTER CH. 3
03

The White Van

SAFE AFTER CH. 3
04

The Clock Jump

SAFE AFTER CH. 6
05

The Backdated Addendum

SAFE AFTER CH. 7
06

The Ghost Wallet

SAFE AFTER CH. 12
07

The Wet Boots

SAFE AFTER CH. 13
08

The Doll and the Drive

SAFE AFTER CH. 17
09

The Bunker Whiteboard

SAFE AFTER CH. 18
10

The Bunker Footage

SAFE AFTER CH. 19

The 0-Hour File

SEALED · FINISH THE BOOK FIRST

RECOVERED EXHIBITS

Every exhibit comes from the book.

Case file exhibit showing a white van on a Riverbend residential street
EXHIBIT 03-A · Photograph · Riverbend, VA
Case file exhibit showing a motel room and wet boots
EXHIBIT 07-A · Motel room · Clock 3:58 AM
Case file exhibit showing a bunker security camera still
EXHIBIT 10-A · Security camera still

WHAT LENA SAW · KILL CODE, CH. 1

LENA'S DEBRIEF

After every answer key, Lena shows you what she saw in the book, in her own words, and the one habit worth keeping.

Detective,
Don't tell me what it means. Tell me what's on it. Then tell me what doesn't belong.
— L.T.

FREE SAMPLE · CASE 01 OF 10

Start with Case 01. Free.

The full first case: exhibit, worksheet, answer key and Lena's Debrief. Print it and work it tonight.

CASE 01 · ASK FOR A HINT

Stuck on Case 01?

Ask about the free sample. You'll get a spoiler-free nudge on where to look, never the answer.

WHAT'S INSIDE

The complete field manual.

  • 10 complete cases with printable exhibits
  • 8-step worksheet for every case
  • Full answer keys with Lena's Debriefs
  • The Core Scoring Rubric (24 points per case)
  • Spoiler clearance on every case
  • Bonus: the sealed 0-Hour File
  • 93-page PDF, US Letter, print at home
KILL CODE by Lena Thorne paperback on a wooden table

THE SOURCE NOVEL · PAPERBACK

KILL CODE

By Lena Thorne

The algorithm predicted her sister’s disappearance. Now it’s predicting a murder.

Two years ago, Detective Lena Thorne’s sister vanished on a rain-soaked road outside Riverbend, Virginia. HelixSight, the town’s celebrated predictive-policing system, had flagged Mara before she was gone.

At 3:07 a.m., sleepless and off the books, Lena receives a new alert. Schoolteacher Amber Adams. Risk score: 99. Predicted outcome: homicide. Then an envelope appears on her car seat: YOUR TIME IS CONFIRMED.

Ordered to stand down, Lena breaks into the system’s hidden layers and finds something worse than prediction: a program that rehearses crimes before they happen, and a countdown that moves every time she resists. With a white van in every mirror and no one in her department she can fully trust, Lena has to keep Amber alive long enough to find the human hand behind the machine.

The machine doesn’t predict murder. It practices it.

Buy KILL CODE on Lulu — $17.99 USD
Published
Language / Category
English · Fiction
ISBN
9780557751655
Pages / Binding
212 · Paperback perfect bound
Interior
Black & white
Dimensions
US Trade · 6 × 9 in / 152 × 229 mm
Copyright
All Rights Reserved — Standard Copyright License

FIELD NOTES

Frequently asked questions.

Do I need to read the book first?

No. Each case lists the chapter to finish first, so you can work along as you read.

Is it a physical book?

No. It's a printable PDF, delivered instantly.

Can I print it more than once?

Yes, for personal use.

Will it spoil the ending?

No. No case reveals anything past Chapter 19, except the sealed file.

Who is it for?

Mystery readers, puzzle solvers, teachers, analysts, and anyone who wants to stop reacting and start observing.