At six in the morning, Artoria woke up to the hum of the machine tool.
She had slept for four hours last night leaning over the workbench in the basement. When she woke up, her cheek was pressed against several drafts filled with geometric shapes—reconstructions of the deep-sea light point arrays from memory. The morning light slanted in through the high window, illuminating the complex nested structures on the paper.
She sat up and stretched her stiff back. On the workbench, the assembly of the thoracic skeleton was mostly complete. Twenty-four vertebrae and twelve pairs of ribs were connected through precise latches, forming the prototype of a complete upper body skeleton. The silver-white titanium alloy glinted coldly and elegantly in the morning light.
"Progress at 58%," she said softly, her voice echoing in the empty basement.
Today she needed to complete the sternum, clavicle, and scapula, then begin the most complex structure, the pelvis. But before that, she needed to deal with those patterns first.
She spread out the draft paper, took a photo with her phone, and sent it to Tony with a note: "The patterns I saw last night, restored from memory. There might be errors."
Thirty seconds later, Tony called her directly.
"You hand-drew these?" His voice was raspy from just waking up, but it carried a hint of excitement.
"Yeah. I only saw the first two-thirds clearly; the patterns changed too fast after that."
"That's enough. Jarvis is doing a pattern analysis... the preliminary results are out." Tony paused. "These patterns aren't random; they're encoding information. But it's not binary, nor any known mathematical language. It's more like a... geometric language."
"What do you mean?"
"Using shapes, symmetry, and transformation rules to express concepts." Tony's speaking speed increased. "For example, this nested hexagonal array. Jarvis parsed three different symmetry operations: rotation, reflection, and scaling. Combined, they might represent a complete event or state."
Artoria looked at the complex figures on the draft paper. In Artoria's Instinct, these patterns did indeed carry some kind of "intent," but the specific content could not be deciphered.
"It's trying to communicate," she said.
"And it's a high-dimensional way of communicating," Tony added. "The high-speed camera array I set up last night only captured blurry images; the resolution wasn't enough. Tonight I need to get closer and use a laser interferometer to directly scan the phase information of the light field—"
"S.H.I.E.L.D. will stop you."
"They can try," Tony laughed. "I'm doing scientific research on my own beach; it's legal. By the way, how's your progress?"
"The skeleton is over half finished. Continuing today."
"Let me know if you need help. I'm free this afternoon and can come by to take a look—purely for technical exchange, I won't disturb your work."
Artoria thought for a moment. "After three in the afternoon."
"Alright. I'll bring you some food while I'm at it. Your fridge has nothing but energy drinks and instant noodles; that's not enough nutrition."
Hanging up the phone, Artoria turned her attention back to work. She changed the machine tool's cutters and began processing the sternum—this was the key structure connecting the left and right ribs, requiring extremely high flatness and hole position accuracy.
By ten in the morning, the sternum was finished. She installed it onto the skeleton and tightened all the bolts. The thoracic part of the skeleton now presented a complete biomechanical structure. Although it lacked muscle and skin, an elegant silhouette was already visible.
Her phone vibrated then. It was Coulson.
"Miss Artoria, we've monitored Mr. Stark setting up more equipment on the coast near you. The Director hopes you can persuade him to exercise restraint."
"I tried, but he won't listen," Artoria said truthfully.
A slight sigh came from the other end of the line. "Understood. Then we can only strengthen our monitoring. Also, regarding those patterns... we've asked mathematicians and linguists from MIT to do a preliminary analysis. Their conclusion is similar to Mr. Stark's: it's an unknown symbolic system, but it seems incomplete, like a fragment expressing part of a larger message."
"A larger message?"
"Possibly." Coulson paused. "The Director asked me to ask you if you would be willing to participate in tonight's observation? We will set up professional equipment at a safe distance. If you could be present, you might be able to provide more on-site observation details."
Artoria looked at the calm sea outside the window. She was equally curious about those light points, but S.H.I.E.L.D.'s "safe distance" meant she couldn't get close.
"I need to think about it."
"Understood. If you decide to participate, we will pick you up before six in the evening. The equipment will be installed at an observation point two kilometers away, with Agents protecting you throughout."
"Got it."
After the call ended, Artoria continued her work. By noon, she had finished processing the clavicles and scapulae on both sides. Now the upper body skeleton was basically complete, save for the final assembly and calibration.
She had a simple lunch—this time it was fresh salad and chicken that Tony had sent over in the morning. Then she began her afternoon work: the pelvic structure.
The pelvis is one of the most complex bone structures in the human body, composed of the hip bones, sacrum, coccyx, and other bones. It bears the weight of the upper body while providing the foundation for lower limb movement. In 2B's design, the pelvis also needed to integrate the main energy core and primary transmission mechanisms, making the structure even more complex.
She spent two hours adjusting the processing parameters and reprogramming. At three in the afternoon, Tony knocked on the door punctually.
Today he wore a dark gray work jacket, carrying an insulated box in one hand and a tablet in the other. He got straight to the point upon entering.
"Let me see the design for the pelvis." He placed the insulated box on the dining table. "There's a bento inside made by a chef; heat it up for dinner. Let's look at the design first."
Artoria pulled up the 3D model on the computer. Tony leaned in toward the screen, his eyes quickly scanning the complex structure.
"Is this... a double ball-and-socket joint design?" He pointed at the hip joint area. "Traditional bionic robots mostly use single-axis or three-axis joints. Yours is a ball-and-socket joint with additional slide rails. The range of motion is almost human-like."
"A natural gait is required," Artoria said.
"But this precision requirement..." Tony zoomed in on the model, measuring key dimensions. "A joint clearance of 0.01 mm, surface roughness of Ra 0.1, and a titanium nitride coating to reduce friction. With the precision of your machine tool, processing this would require performance beyond its limits."
"It can be done."
Tony glanced at her without questioning, then pointed to the cavity structure inside the pelvis. "Is this for the energy source? The dimensions... are enough to fit a small arc reactor."
"High-density batteries will be used."
"A waste of space." Tony shook his head. "If you need small reactor technology, I can provide it. Stark Industries' miniature arc reactor, third generation, 8 cm in diameter. The power output is enough to run this robot of yours for ten years."
Artoria remained silent. Tony's technology was indeed superior, but accepting it meant a deeper technical entanglement.
"Think about it." Tony didn't push. He connected his tablet to her computer. "Look at this first—Jarvis's deep analysis of the patterns."
Complex analytical charts expanded on the screen. Those light point arrays were broken down into hundreds of basic graphic units, each with clear transformation rules.
"Look here." Tony pointed to a set of nested hexagons. "Jarvis found that these patterns follow a non-Euclidean geometric transformation rule. Simply put, the spatial relationships they express cannot be fully presented in our three-dimensional World; we can only see the projections."
"So it comes from a higher dimension?"
"Or it has mastered a high-dimensional way of expression." Tony's expression was serious. "Either way, this is beyond our existing physical understanding. Those S.H.I.E.L.D. mathematicians must have seen it too, which is why they're so nervous."
Artoria stared at the screen. If the luminous entity really came from a higher dimension, the reason it was interested in her might be even more complex—it wasn't just the energy signature; perhaps the "anomaly" within her was what attracted it.
"I've agreed to S.H.I.E.L.D. to participate in tonight's observation," she said.
"A wise choice." Tony put away his tablet. "I'm going too. Don't worry, I'll keep a safe distance—at least until I figure out if that thing'swallows' people."
At four in the afternoon, after Tony left, Artoria continued processing the pelvis. The complex curved structures extended the processing time. It wasn't until six in the evening that she finished the rough machining of the hip bone part.
She rested for a moment and heated up the bento Tony brought—it was an exquisite Japanese set with grilled fish, rice, miso soup, and a small dessert. It tasted great, much better than her usual instant food.
At six-thirty, the S.H.I.E.L.D. car arrived on time. Melinda May came; she was wearing a black tactical suit suitable for action today, with a sidearm holstered at her waist.
"The observation point is on a high ground two kilometers from the coastline. It has a good view and cover," May introduced briefly. "We've set up a spectrometer, high-speed cameras, electromagnetic field detectors, and a sonar array. Mr. Stark's equipment is five hundred meters away. We'll maintain communication distance."
The drive took ten minutes. The observation point was located on a cliff overlooking the sea, where temporary tents and various equipment had already been set up. Four S.H.I.E.L.D. Agents were operating instruments, and Coulson stood outside the tent, observing the sea with binoculars.
"Miss Artoria." Coulson put down his binoculars. "Thank you for participating. The equipment is in place. If the luminous entity appears again, we hope you can describe all the details you perceive—not just visual, but including Instinct, temperature changes, energy fluctuations, and so on."
"I'll try my best."
Night fell. The sea was gradually swallowed by darkness, with only a few lights flickering from Tony's observation point in the distance. Artoria sat on a folding chair, wearing a warm jacket provided by S.H.I.E.L.D., waiting quietly.
At 8:10 PM, her wristband vibrated slightly.
Almost simultaneously, a light lit up beneath the sea.
But this time was different—it wasn't scattered light points, but a complete geometric structure. A giant tetrahedron composed of hundreds of light points was suspended thirty meters below the sea surface, rotating slowly.
"Start recording," Coulson ordered in a low voice.
All equipment started up. The spectrometer captured complex spectral lines, the high-speed camera filmed at ten thousand frames per second, and the sonar detected slight spatial disturbances.
Artoria stood up and walked to the edge of the cliff. Artoria's vision allowed her to see every detail clearly—the connections between the light points weren't straight lines, but curves, twisted spatial paths. Inside the tetrahedron, more complex light flows were pulsing, as if simulating some kind of calculation process.
Then, the tetrahedron began to deform.
It unfolded and reorganized, turning into a more complex polyhedron, then deformed again. Every deformation followed strict mathematical laws, like a proof process or a grammatical demonstration of some language.
"It's teaching," Artoria said softly.
"Teaching?" May looked at her.
"Demonstrating its linguistic rules. Look—" Artoria pointed to the sea, where the light points were forming a simple equilateral triangle, then changing into a square, and then a pentagon. "It's showing basic shapes, then demonstrating transformation rules."
Sure enough, for the next ten minutes, the luminous entity displayed dozens of geometric transformations: translation, rotation, reflection, scaling, shearing, projection... each was slow and clear, like a patient teacher demonstrating.
Finally, all the light points suddenly gathered together, condensing into a sphere of light. The sphere of light rose slowly, emerged from the sea, and hovered in the air.
Artoria felt a gentle wave of energy sweep over her body. It wasn't aggressive; it was more like... a scan.
The sphere of light flashed three times, then shot out a thin beam of light pointing in her direction. The beam projected a pattern onto the sea surface—it was the nested hexagonal array she had seen last night, hand-drawn today, and which both Tony and S.H.I.E.L.D. were analyzing.
Then the beam moved, and next to the pattern, it projected another one.
It was a set of simpler graphics: a circle with a dot inside.
Then, the circle became an ellipse, with the dot still inside.
Then the ellipse became a more complex conic section.
Finally, the graphic stabilized into a standard ellipse, with the dot located at one of the foci.
The sphere of light flashed once and disappeared. The sea returned to darkness.
The S.H.I.E.L.D. Agents fell into a brief silence, followed by a burst of hurried operations and reports. Coulson walked quickly to Artoria's side.
"What did you see?"
"It's demonstrating mathematical relationships," Artoria said, those graphics still flashing clearly in her mind. "From a circle to an ellipse, the dot at the focus... that's the basic model of planetary orbits. It's expressing the laws of celestial motion."
"Why?"
"I don't know." Artoria looked at the dark sea. "But it's trying to establish a common language. From geometry to transformations to physical laws... it's looking for an entry point we can understand."
May walked over, her expression serious. "The Director orders all data to be transmitted back to headquarters immediately. Miss Artoria, we need your detailed statement."
"We'll talk about it when we get back," Artoria turned and walked toward the vehicle. "I need time to organize my thoughts."
On the way back, she closed her eyes in deep thought. The luminous entity's logic was becoming clearer: it wasn't a threat; it was an explorer. It was using the language of mathematics and physics to try and communicate with this World.
And it chose to start with "her."
When the car stopped in front of the small house, her phone vibrated. It was Tony, who sent a video—the projection process of the sphere of light filmed from his angle, with a line of text:
"It recognized you. That elliptical focus model is the geometric expression of Kepler's First Law. It's saying: 'I understand your science'."
Artoria replied: "It's looking for an interlocutor."
"And it chose you. Why?"
She didn't answer. Because she was asking herself the same question.
Late at night, she sat in her study, recording everything that happened tonight in her notebook. The sea outside the window was pitch black, but she could feel that in its depths, an intelligent existence was waiting.
Waiting for her response.
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