Chapter 2: Letter from the Dead

The rain outside intensified, and thunder rumbled across the sky above Denver, drowning out Raymond’s rapid breathing. He gripped the page of the diary, his knuckles turning white, as quantum ink glowed and flickered within the paper’s fibers, like a cluster of warning lights refusing to shut down. He pressed the paper flat against the desktop, and the residential AI immediately cut off all external communications.

A string of new characters, previously invisible, floated into view at the bottom right corner of the page: Orbital City Offline Signature Chain, totaling forty-seven record nodes. The generation date of the final node was eleven days later than Jack’s death certificate.

Raymond put on isolation gloves and placed the diary into the evidence scanning slot. The scanner emitted three short beeps; the quantum ink light contracted according to the frequency, revealing a hidden verification mark. The residential AI prompted, “The paper contains an offline signature. Verification requires reading the local certificate, and the process will leave a judicial access record.”

Raymond stared at the string of dates and said, “Read the certificate, close the cloud backup, and save any external requests in the isolated zone first.” The residential AI replied, “After execution, you will not be able to prove that no one modified the device during the scan. The evidentiary status may be challenged by the defense.”

Raymond pressed the confirm key and said, “Preserve the spectral snapshot of the original. I only want to verify the source; I will not alter any information in the diary.”

[Denver District Attorney's Office · Interim Record of Evidence Verification]

Carrier: Quantum ink paper.

Submitter: Raymond McRae.

Verification method: Cross-comparison of the offline certificate chain.

Initial conclusion: All forty-seven records used the same Biometric Key. The registered holder of the key is Jack Miller.

The residential AI continued, “Biometric keys can be copied; a single match is insufficient to prove the identity of the record-keeper. A second set of independent features is required.”

Raymond pulled up Orbital City’s judicial archives and said, “Compare writing pressure, pause intervals, and semantic deviation, and then check the random noise in each signature.”

The residential AI responded, “This will access restricted archives. Your professional account will be permanently flagged, and withdrawing the application will not erase the trace.”

The cost was as clear as the crack on the desk. The shipping company’s lawyers could use this to accuse him of exceeding his authority, and the prosecution would suspend his case privileges. Raymond still held his professional credentials up to the reading area and said, “File an emergency verification application under my account, with the reason listed as suspected falsification of the death certificate and tampering with evidence.”

The residential AI hummed softly and said, “The application has been recorded. The oversight department will receive an automatic notification within twenty-four hours.” Raymond let go of the panel, a red mark left on his palm, and said, “Good enough. I only need to know what the dead man actually wrote within those twenty-four hours.”

The forty-seven signatures unfolded one by one. Each signature carried the writing offset left by Orbital City’s low-gravity environment; the stroke endpoints drifted in the same direction. Raymond overlaid the purchase signatures Jack had left in Denver. He deliberately ignored the character shapes and focused only on the pauses. In the seventh, nineteenth, and thirty-third records, the writer stopped for 0.8 seconds at the end of the date.

That was Jack’s habit when correcting a date. The residential AI prompted, “Three sets of features match simultaneously; the probability of forgery is already below the judicial acceptance threshold.”

Raymond corrected it and said, “Do not give a conclusion; just list the verifiable facts. Probabilities will make the jury ignore the forgery conditions.” The residential AI replied, “Rewritten to four facts: environmental offset, muscle delay, semantic habit, and continuous random noise.”

Raymond unpacked the random noise curve and found that the ends of each curve connected to the beginning of the next. A forger could steal the Biometric Key and simulate the handwriting, but they could not predict in advance the noise points produced by the next paper discharge. The forty-seven records formed a continuous chain, with no replacement point in the middle.

Raymond dialed Karl Whitman’s encrypted line and said, “I have Jack’s continuous records. There are still eleven days of valid signatures after the death certificate.”

Karl took a few seconds to reply and said, “You are touching a closed file. Continuing to investigate will destroy your professional reputation.” Raymond sent over the verification summary and said, “Four independent features match, the signature chain is continuous, and any forgery would have required pre-controlling forty-seven discharges.”

Karl’s voice was very low. He said, “Give the original to the major crimes unit; I can list it as supplementary evidence of unknown origin.”

Raymond closed the sending window and did not hand over the original. He asked, “Do you want to confiscate the diary, or do you want the shipping company to believe it has already been entered into the police warehouse?”

Karl answered, “I want you to survive the investigation, and I want this city to have one fewer unsolvable missing-persons file.” Raymond flipped to the next layer of ink and said, “You mentioned missing-persons files, but Jack’s death certificate was confirmed by your department. The two conclusions directly conflict.”

Karl paused for a moment and said, “The death certificate came from Orbital City. Denver is only responsible for archiving; I do not have the authority to re-examine the original medical records.”

Hidden text appeared line by line. In his continuous records, Jack repeatedly mentioned the Denver Old Gene Repair Center, spanning a period of six months. Every time an Incident Number appeared, a blank of consistent length was left. The deletion action happened before the signature, indicating that the blanks were intentionally left by the record-keeper.

Raymond told the residential AI, “Measure the ink layer thickness in the blank areas and determine whether the content was erased or intentionally skipped during writing.” The residential AI completed the scan and said, “There are no traces of secondary heat on the fibers; the record-keeper never wrote any characters in the blank positions.”

Raymond zoomed in on the line spacing and asked, “Check the pauses in the surrounding sentences. Did he ever wait for external information before completing this section?” The residential AI replied, “There is a six-second pause before each blank, and during this time there was a short-term power fluctuation from a quantum receiver.”

[Quantum Diary Transcription · Record Twelve]

An incident at the Denver Old Gene Repair Center involved three minors. The Incident Number was left blank. Noah knows the source of the samples and knows who modified the regeneration sequences. If all materials are made public, Judy will lose her current identity protection.

[Record Nineteen]

The Incident Number must be removed from the paper. The shipping company can track any complete number; even an offline carrier is not safe.

Raymond read it a second time and told the residential AI, “Trace the source corresponding to the receiver’s power consumption. Only check the physical distance; do not access the communication content.”

The residential AI warned, “Residual traces are insufficient; the results can only be narrowed down to three public relay zones in Orbital City.” Raymond marked the three relay zones on a timeline and said, “Cross-reference them with Jack’s entry and exit records to find the only location that simultaneously covered all forty-seven signatures.”

A connection request came from the other end of the line; the identity was displayed as Noah. Raymond did not answer immediately. He first stuffed the diary into an anti-scanning bag, then allowed the voice to come through. Noah spoke, “You just queried the old center’s archives; the shipping company has already received an access alert. Stop immediately.”

Raymond leaned against the edge of the desk and said, “You know who manages the alerts, so it seems the family mole that Jack wrote about didn’t point in the wrong direction.” Noah’s breathing was mixed with the low-frequency vibration of a high-speed train. He said, “He only saw the post-incident handling; he did not see the day Judy was added to the observation list.”

Raymond asked, “Where is the Incident Number? Did you delete it to protect Judy, or to protect the person responsible for signing off?”

Noah did not deny it and said, “The Black Box cannot be made public. It stores Judy’s Gene Repair samples from before and after the procedure, and she will be taken away directly.”

Raymond pulled up the sealed list of the old center and said, “A legal review will not take away a minor, unless the sample source involves a controlled experiment in Orbital City.”

Noah raised his voice and said, “You still believe in normal procedures, but for this case, someone has replaced the procedural entry point right from the death certificate.”

Raymond watched the rain streak the window glass and said, “Tell me the Incident Number. I can apply for a sealed review so Judy’s identity does not enter the public file.”

Noah replied, “Your sealed application won’t stop the shipping company. They control medical transport and quantum relays in Orbital City.”

Raymond tuned the communication spectrum to narrow band; the background vibration became immediately clear. He counted two turn intervals and confirmed that Noah was moving through the Denver city area. Raymond said, “You haven’t left Denver, and you haven’t gone to Judy. You are heading to the Old Gene Repair Center.”

Noah was silent for five seconds and said, “You can hear the location from the line, but you still haven’t understood why Jack left the Black Box for you.” Raymond fastened the anti-scanning bag. He said, “He needed someone to get the evidence into a courtroom, and he also needed someone to separate Judy from the evidence.”

Noah replied, “If you open the Black Box, Judy will become a live sample, and no legal identity can protect her.”

Karl’s line forced its way in; the three-party communication icon lit up at the same time. Karl said, “Raymond, end the call. Hand over the diary and the Black Box location to me. What happened tonight can still be contained.”

Noya coldly replied, “You controlled Jack’s death certificate, and now you want to control the second piece of evidence that could overturn it.” Karl did not argue back and said, “I signed the archiving confirmation; I did not sign Orbital City’s medical conclusion. Do not mix the two things.”

Raymond captured that phrase and saved it locally. He said, “You admitted you did not verify the original records, yet you allowed the case to be archived with a death conclusion. That is enough to trigger an internal review.”

Karl replied, “Starting a review will alert the person who actually signed. You will make Judy pay the price first.”

Raymond unplugged the external communication module. The screen went dark; the residential AI could only work through the desktop speaker. It completed the cross-comparison of the locations for all forty-seven records, leaving only one overlapping area: the medical logistics layer of Orbital City. Raymond asked, “Verify the location source and rule out the possibility of reusing old coordinates from a diary copy.”

The residential AI answered, “Each location contains an independent gravity drift value, and the values match the contemporaneous attitude adjustment records for Orbital City.”

Raymond continued, “In the eleven days after the death certificate, was there any possibility of ground transcription or remote proxy signing?” The residential AI replied, “The signature delay is below the limit of local transmission; the record-keeper and the paper must have been in the same physical space.”

This was the fact that Karl could not shove back into the file cabinet. Jack personally left continuous records; the dates after his death were certified by Orbital City clocks, and the environmental offsets and attitude adjustments matched step by step. Raymond copied the verification records into three read-only storage chips; one was placed in the prosecution’s evidence box, one was stuffed into the residential fire compartment, and the last one was prepared for Judy.

For every extra copy, the chance that Judy was exposed increased by one. The residential AI prompted, “Detected that the Quantum Diary still has undeveloped fields; reading them will send a confirmation pulse to the original location node.”

Raymond asked, “Can the last coordinate in the field cache be read without sending a confirmation pulse?” The residential AI answered, “It can be read, but the cache may have been preset by the record-keeper; it cannot be proven that the coordinate corresponds to the current time.”

Raymond took out the page of the diary; the corner of the paper had been softened by the sweat on his palm. He chose to read the cache and did not send the confirmation pulse. The ink light gathered again; the Incident Number position remained blank, but one more persistently flashing location marker appeared on the last line.

The residential AI completed the local verification and said, “The cache writing time was eleven days later than the death certificate. The location signature is valid, and the record carrier is still in the original gravity environment.”

Raymond pressed the paper against the scanning slot. Only a line of cold white characters remained in the location field: Orbital City.