He continued with practical examples. How to make research notes that use magical terms disguised as botanical terms. How to use ritualistic hand movements that could be explained as "herbal massage techniques." How to hide small runes among decorative carvings on wooden shelves.

  Mira learned quickly. Her spatial affinity gave her a sensitivity to patterns and structures, which turned out to be useful also for creating complex layers of concealment. Within a few days, she was already able to make a "herbal journal" that contained real notes about plants, but also small codes that recorded the progress of her magical training.

  Rhen, on the other hand, focused more on the physical aspects. He repaired the fence around the warehouse, not with magic, but with good manual skill. He also made a simple warning system using empty tin cans and rope that would jingle if someone broke through. Kieran appreciated that—sometimes non-magical solutions were actually the most effective, because they left no mana traces.

  One afternoon, while Mira was practicing [Micro Distortion Detection] Tier 2—which they disguised as "a study of the effect of wind on soil moisture"—Kieran called to her.

  "Try to feel the [Blur] shroud around us," said Kieran. "What do you feel?"

  Mira closed her eyes, shifting her perception. Her willpower crept outward, touching the blurring field surrounding the warehouse. "It feels like… fog. But not dense. More like murky water. I can feel the magical activity inside it, but vaguely. Like seeing a shadow through frosted glass."

  "Good." Kieran nodded. "Now, try to find a gap in it. A point where the field is thinner."

  Mira concentrated harder. Several minutes passed before she finally opened her eyes, pointing toward the northeast corner. "There. There is an area the size of a plate where the blur is thinner. Like the layer is uneven."

  Kieran smiled, satisfied. "Exactly. That is a weakness in my design. I deliberately left it there—as a trap. If any observer tries to monitor us, they may focus on that point, because it seems to offer a clearer 'window.' But in reality, that point is fitted with a hidden sensor that will alert us if anyone tries to exploit it."

  Mira was astonished. "So… that is not a weakness. That is bait."

  "Everything can be a layer," said Kieran. "Even an apparent weakness."

  Day by day, life at the warehouse continued with a calm and productive rhythm. From the outside, the place truly looked like the dwelling of a group of slightly eccentric herbalists or nature scholars. Smoke from the herb-burning furnace rose in the mornings. The scent of mint and lavender was sometimes detectable from several dozen meters away. Rhen was seen coming and going to the village to bring supplies or sell a few simple remedies. Mira was seen busy in the garden, noting in a large book, or harvesting dried leaves.

  And behind all of that, magical training continued.

  Mira grew increasingly skilled in basic Spatial Grammar. She could now make a [Small Stable Portal] Tier 2.5 the size of an arm with good consistency, though only for short distances within the room. Kieran taught her to always disguise it as an "optical experiment" by using mirrors and lenses as visual aids. If anyone peeked, they would see a young girl playing with light and reflections, not opening a hole in space-time.

  Rhen, though without magical affinity, developed in his role as logistics coordinator and physical security. He mapped the surrounding area, recognized animal movement patterns, knew when merchants or wanderers usually passed through. He also learned the basics of non-magical reconnaissance from Kieran—how to move without sound, how to use natural cover, how to read tracks.

  Kieran himself spent much of his time refining their sensor network. He added new detection layers: ground vibration sensors that could distinguish between human footsteps and animal footsteps, high-frequency sound sensors that could capture conversations from a distance, even simple temperature sensors that could detect the presence of warm-blooded creatures at night. All of this he integrated with Starlight Bloom as the data processing center. The flower proved to be a perfect hub—its light changed color subtly depending on the type of threat detected: blue for normal, green for the presence of living creatures, yellow for minor magical activity, orange for physical disturbances.

  In the second week after the letter, Kieran decided to test the effectiveness of their concealment.

  "I will go to the village for a while," he said to Rhen and Mira one morning. "I want to see if anyone notices my departure, or if anyone tries to approach the warehouse while I am gone."

  "You will go alone?" asked Mira, worried.

  "I will use [Visual Concealment: Limited Refraction] Tier 3," answered Kieran. "Not fully invisible, but difficult enough to notice if not specifically sought. You two stay here, continue normal activities. Monitor the sensors. If anyone approaches, shatter the emergency communication stone."

  Rhen nodded. "Be careful."

  Kieran left the warehouse shortly after. He did not go directly to the village—first, he moved around the area, checking for signs of hidden surveillance. He used [Life Detection: Radius Scan] Tier 3 periodically, also [Environmental Analysis: Search for Anomalies]. Nothing suspicious.

  The journey to Ashvale village took about forty minutes on foot. Kieran took a roundabout route, through a small forest and along a river. He occasionally stopped, pretending to collect plants, while actually checking whether anyone was following him. No one.

  In the village, the atmosphere appeared normal. Farmers were busy in the fields, some women were washing clothes by the riverbank, children were running in the dirt road. Kieran, with his shroud making him difficult to notice, walked through the village without attracting attention. He stopped near a small stall, listening to audible conversations.

  "…livestock farm in Oakhaven again. Two goats died frozen last week.""They say there's a stranger in Frostpeak asking around about that. A scholar maybe.""Ah, just let them be. What matters is that we are safe."

  No one mentioned the old warehouse or suspicious activity near the Whispering Woods. It seemed their concealment was working—or their observer did not originate from this village.

  Kieran bought a few daily necessities—salt, oil, candles—from a traveling merchant who was passing through. He deliberately paid with ordinary coins, showing no conspicuous wealth. The merchant, an old man with a white beard, accepted the payment with an indifferent manner.

  "I hear there's a new herbalist at the edge of the forest," said the merchant suddenly, while wrapping the goods.

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  Kieran kept his tone neutral. "Oh really? Recently moved in?"

  "That's what they say. A few people saw smoke from that direction early in the morning. And there's a smell of herbs." The merchant shrugged. "As long as they don't bring trouble, that's fine. The world needs more people who know medicinal plants."

  "Agreed," said Kieran, then left.

  That information was interesting. The villagers were aware of their presence, but considered them herbalists—exactly as hoped. That was good.

  On the way back, Kieran decided to check one of the symbol locations—the ice spiral field that had been visited by the third party weeks ago. He approached carefully, maintaining his shroud.

  The field had now recovered. The traces of the ice spiral were already almost invisible, only faint remnants of scratches in the ground overgrown with young grass. No new footprints. No signs of recent human activity. The sensor he had placed there—a small rune stone hidden under a bush—reported no detection in the past ten days.

  Maybe he has moved on, thought Kieran. Or maybe he is waiting for us to make a mistake.

  He returned to the warehouse as the sun began to tilt toward the west. Rhen and Mira welcomed him with relief.

  "No one approached," reported Rhen. "Sensors calm. Starlight Bloom stayed blue."

  "Good." Kieran put down the purchased goods. "The village thinks we are herbalists. That is exactly what we want."

  Mira smiled faintly. "So… we are safe?"

  "For now," answered Kieran. "But don't be complacent. The sender of that letter is still out there. And they may be more patient than we think."

  That night, after dinner, Kieran gathered them for an evaluation session.

  "We have done the concealment well," he said. "But we need to prepare for the worst-case scenario: if our concealment fails, and someone confronts us directly." He looked at them both. "We need a consistent story. Who we are, what we are doing here, why we are isolated."

  Rhen nodded. "I have already thought about it. We can say we are an independent scholar group interested in local flora. Me as logistics supervisor, Mira as research assistant, you as head researcher. We chose a remote location to avoid disturbances and be able to focus."

  "Add details," suggested Kieran. "For instance, we are compiling a catalog of medicinal plants of the Frostpeak region to be donated to the royal library. That sounds noble and non-threatening."

  "And if they ask about 'strange' activity?" asked Mira.

  "Say it is an experiment in better drying and extraction methods," answered Kieran. "Or research on the influence of lunar phases on herbal potency. Something that sounds scientific but is ambiguous enough."

  They spent an hour composing the story together, ensuring every detail was consistent: false backgrounds, research objectives, plans going forward. They even created aliases—Kieran became "Kaelen," Rhen kept his own name (since he was already known in the village), Mira remained just "Mira" (a common name). They practiced answering questions that might be asked, with a natural manner, not defensive.

  "Remember," said Kieran at the end of the session, "the greatest secret is not what we hide, but how well we can convince others that nothing is being hidden. Confident, but not overly confident. Friendly, but not overly open."

  The following days passed with a soothing monotony. Their activities truly became routine: wake early, tend the plants, conduct "experiments," record results, practice concealed magic, sleep. Sometimes Rhen went to the village to sell simple remedies they made—herbal tea, basic aromatherapy oil. The proceeds they used to buy supplies again, covering their living costs.

  Kieran used this time to conduct in-depth research on the four symbols they had collected. Behind the layers of herbalism concealment, in the small underground room they had quietly dug out (and covered with a false bookshelf), he analyzed the data.

  The symbols—from the fallen tree, ice crystal, Woodward feather, and Memory Spring—still held mysteries. Kieran had made physical replicas of each symbol using a special alloy that could sustain magical resonance. He placed them on a stone table in the underground room, arranging them in the same pattern as their actual locations on the map.

  "[Symbol Analysis: Cross-Resonance Scan]," he murmured one night, Tier 4. His willpower flowed into the four replicas, searching for connections among them. In the air above the table, a three-dimensional projection formed—four points of light connected by lines of energy, forming a tilted diamond pattern. At its center, a fifth point flickered dimly.

  An alignment pattern, thought Kieran. They are not merely location markers. They are like… stabilizers. Or perhaps anchors.

  He tried adding data from the temporal contamination at Memory Spring and the moonlace flower. The pattern became more complex, with additional lines radiating from the center point like clock hands.

  "[Temporal Simulation: Long-Term Effect Projection]," Tier 4.2—slightly exceeding the safe limit, but only for a few seconds. His vessel pulsed painfully, but he held on. In the projection, the lines began to rotate, forming a spiral that slowly expanded.

  And then, at the center of the spiral, a shape began to form: a tower.

  Kieran stopped the simulation quickly, his breath ragged. His head throbbed, and there was a taste of iron on his tongue. But he had seen enough.

  These symbols are connected to the Tower. Even before the Tower appears. His thoughts spun rapidly. Were they markers of locations where the Tower would affect reality first? Or… were they remnants of someone's attempt from the future to influence the past?

  He sat down, digesting the implications. If these symbols were part of something larger—a pattern deliberately left behind—then there was another party who also possessed knowledge of the future. Not merely the letter sender who might be an ordinary scholar. But an entity with a deep understanding of temporal mechanics.

  Another regressor? Possibly. But the style of these symbols did not match the methods he knew from the original timeline. These symbols were subtle, elegant, almost like art. Different from the efficient and brutal style commonly used in the Tower war.

  Or perhaps these were traces of an ancient race that had studied temporal mechanics long before humans. Elf? Dwarf? Or something older?

  Kieran recorded all his observations in the secret notebook he kept in the underground room. This book was protected by [Conceptual Lock: Opens Only for Owner] Tier 4—magic powerful enough to prevent anyone else from opening it without permission.

  In the third week after the letter, something nearly imperceptible happened.

  Starlight Bloom, which was usually a stable blue, suddenly flickered pale green for less than one second, then returned to blue. It happened right at dawn, when Kieran was sitting near it doing his morning meditation.

  He opened his eyes, watching the flower. No further flickering. The sensors reported nothing. But he did not dismiss it.

  "[Data Log Retrieval: Sensor Activity Last 24 Hours]," he murmured, Tier 3. Before his eyes, a data stream projected—records from all sensors around the warehouse. Mostly normal: small animals passing, wind, temperature changes. But there was one anomaly: the high-frequency sound sensor in the trees to the east had captured the sound of a single footstep at around four in the morning—one step, then nothing more. As if someone had stopped, stood still, then left very carefully.

  Someone is spying, thought Kieran. Perhaps only taking a quick look. But they came closer than before.

  He did not tell Rhen and Mira yet—not wanting to disturb their concentration. But he raised his vigilance. He added extra vibration sensors in the eastern area, and instructed Starlight Bloom to give a steady green alert if there was any detection of human presence within a one-hundred-meter radius.

  The following days showed no further suspicious activity. Perhaps it had been a coincidence—a lost hunter, or a large animal. But Kieran did not believe in coincidences.

  Finally, a week after that incident, as the sun began to set and the sky turned reddish-orange, Rhen announced that he would go to the village once more to buy food supplies that had run out. He set off with a small pushcart, promising to return before dark.

  Kieran and Mira remained at the warehouse, continuing their "experiments"—that day they pretended to study the influence of moonlight on the essential oil content of lavender. Kieran was actually teaching Mira the technique of [Subtle Essence Extraction] Tier 2 while disguising it as simple steam distillation.

  About two hours after Rhen left, Starlight Bloom suddenly flickered steady green.

  Kieran immediately stood. "There is someone."

  Mira froze, the distillation bottle in her hand stopping its sway. "[Life Detection]?" she whispered.

  Kieran nodded, activating [Long-Range Scan: Thermal Vision] Tier 3. In his eyes, the world transformed into a mosaic of heat colors. He saw Mira as a yellow-orange silhouette. And outside, about eighty meters to the east, there was another faint red silhouette—someone hiding behind a large tree. Only one person.

  "Someone is observing us from a distance," said Kieran quietly. "Don't look directly. Maintain our activity as usual."