Chapter 2: Chapter 2 Technical error or cover-up? — Ink on an Old Map

At exactly 7:30 the next morning, Lê An held a hard plastic map holder and stood in front of Chief Khang's office door. Khang was a veteran archivist who had worked at the Center for nearly thirty-five years. He belonged to an older generation: principled, rigid, mechanically devoted to regulations, and especially hostile to trouble. With half-white hair and glasses hanging down the bridge of his nose, Mr. Khang was secretly called "the stone statue of the archive" by the younger staff.

An took a breath and knocked on the door three times.

"Come in," Mr. Khang's voice said, even and without any emotion.

An pushed the door open and walked in. Mr. Khang was diligently reviewing a long classification list on the computer screen. When he saw An carrying a map tube instead of the usual digitized files, he frowned slightly.

"What's the matter, Miss An? Is there a problem with shipment QK5-1968? Our department's digitization progress this month is behind the Department's target," Mr. Khang tapped his ballpoint pen lightly on the table, implying encouragement.

"Yes sir, progress is still being ensured. But I accidentally discovered a very unusual detail on a 1968 topographic map." An carefully pulled out the map and spread it flat on Mr. Khang's spacious desk. She pointed to the black ink at coordinates 14°N - 108°E. "Please take a look at this. Under this ink stain there are physical imprints of printed words. It is the word 'Đan Trầm'. I suspect this is not an accidentally spilled ink stain, but an intentional concealment of information."

Mr. Khang pushed up his glasses, leaned forward and stared at the ink stains. About ten seconds passed in silence. Suddenly, he let out a breath, leaned back in his chair and waved his hand.

"Miss An, how many years have you been working here? Three years, right?"

"Yes, almost four years."

"Four years is enough time for you to understand that wartime documents are never perfect," Mr. Khang said, his tone filled with the admonishment of an elder. "Printing conditions at that time were extremely primitive. It was a common occurrence for printers to leak ink or spill ink during transportation. Not to mention that this map was used on the battlefield, perhaps an officer accidentally spilled the ink bottle. It was just a normal physical technical error."

"But uncle." An objected, trying to stay calm so as not to appear arrogant. "This ink stain is too square. Its edges are sharp, there is no capillary patchiness like regular ink penetrating paper. And I used the technique of cross-bright light to determine if there were letters printed underneath. Someone intentionally blacked it out to erase the name 'Đan Trầm'."

Mr. Khang took off his glasses and rubbed his temples. The look he looked at An was no longer the usual annoyance, but mixed with a bit of warning.

"Even if you're right, what does that mean for our work? An archivist's responsibility is to receive, classify and preserve the current state of documents, not to play detective investigating why a name was blacked out fifty years ago. Things that have been covered up, can't be read, it's best to just leave it alone. You're wasting my time and yours. Bring it back, note that 'technical error in printing' then transfer it to the digitization department immediately."

An pursed her lips tightly. She knew that arguing further with Mr. Khang would only bring trouble. "Yes, sir," she replied softly, rolled up the map, and left the room.

However, Mr. Khang's words "the things that cannot be read, it is best to leave them alone" further ignited the fire of curiosity in An's heart. Why is a veteran expert like you hastily and irrationally dismissing all doubts? Are you afraid of trouble, or do you really know something and don't want to say it?

Eight o'clock in the evening.

The entire staff of the Archives Center had left. Only An remained. She turned off the light in the classification room and secretly brought the map tube down to the Restoration and Technical Inspection room in the deepest basement. She had a spare key to the room thanks to her good relationship with the chief technician.

The Restoration Room was like a miniature chemical laboratory, reeking of solvents and specialized cleaning chemicals. An turned on the ventilation system, put on a medical mask and rubber gloves, placed the map on the inspection table, and pulled the Spectral Analyzer closer.

This is the Center's most expensive equipment, specialized for analyzing the chemical composition of ink and paper materials without damaging the document surface. An started the machine and shined the scanning beam on the black ink. A few minutes later, a chemical analysis chart appeared on the connected computer screen.

An opened her eyes wide and watched the indicators running across the screen. Mr. Khang was completely wrong.

Spectroscopic results showed that this was not ordinary writing ink (fountain pen ink), nor was it the oil-based ink commonly used in map printing at that time. Its composition contains a large proportion of Carbon Black (pure carbon black) combined with a special synthetic resin as a binder.

"A super durable covering compound." An mumbled, looking up data on the intranet. "Waterproof, fade resistant under UV rays, and cannot be cleaned with common solvents without completely damaging the paper underneath."

This type of ink was very rare, extremely expensive during wartime, and was usually provided only to high-level intelligence units or special military censorship departments to permanently erase top-secret information before documents fell into enemy hands. The fact that it appeared on a military-region topographic map to blacken an anonymous place was an anomaly that could not be explained by logistics or accident. Someone had spent a great deal of effort to make sure the name Đan Trầm disappeared forever.

An took out her phone and connected to the Center's digitized database through her employee account. She wanted to cross-reference the coordinates 14°N–108°E with topographic maps of the same area printed before and after 1968.

The results that appeared made her shiver.

On the map printed in 1967, the coordinates were just a white valley, without any residential area symbols, nor the name Đan Trầm. It is painted as an unsurveyed wilderness.

On the map printed in 1969, those coordinates were outlined in red, with a cold italicized line: "Military restricted area X-14. Non-authorized people are exempt from entering."

Only on the 1968 version she held had the name "Đan Trầm" slipped through the censorship stage before printing, only to be discovered by someone who used intelligence ink to blacken each map by hand. Đan Trầm village had existed briefly in 1968, then was suddenly wiped out and replaced by "Military Restricted Area X-14" in 1969. What had happened in that valley? A bombing campaign—or a massacre?

An felt her throat go dry. She picked up the map to put it in the tube when a light flashed from the back of the paper, making her stop.

The map was protected by a thin layer of backing paper to prevent moisture during storage. An turned on the light box on the restoration table and placed the map on top. Strong light from below penetrated the layers of paper, revealing the faintest details.

Right behind the location of the black ink, hidden between the map paper and the moisture-proof lining, there was a small piece of paper the size of a matchbox stuck in. Under the penetrating light, An could faintly read the handwritten words scribbled with a fountain pen leaking ink. That seems to be the handwriting of the person who did this blacking out, a message hastily forgotten during the process of packing the map into the archives.

An used a pair of technical tweezers, carefully dabbed a bit of glue-loosening solution, deftly slipped through the edge of the lining paper and picked out that small piece of paper.

She took a deep breath, fixing her eyes on the yellowed piece of paper. The shaky, hasty handwriting appeared clearly under the bright white light:

"Verbal order from superiors. Wipe out Đan Trầm. Leave no trace, neither on paper nor on land."

An's hands were shaking. The tweezers almost fell out of her hand.

"Both on paper and on land". This quote isn't just about blacking out a name on a map. It is a death sentence for a real village. Someone ordered the complete destruction of Đan Trầm, erasing all traces of its people, houses, and even its name from the flow of history.

Mr. Khang was right about one thing: she was facing things that should be left alone. But he was wrong about the rest. An could not turn her back. She was an archivist, and her job was to protect the truth of history, no matter how cruel and bloody that truth was.

An folded the small piece of paper and carefully tucked it into a secret compartment in her wallet. She looked at the map once more before putting it away. The decision had been made. That weekend, she would travel to the Central region to find coordinates 14°N–108°E and learn whether any cries still lingered beneath the cruel black ink.