Chương 18: Dart Thrown Left-Handed

Dawn hit the lava cave in stages. First the breach in the basalt bowl turned from black to deep violet, then the shadows on the cave walls started pulling westward like things with somewhere to be. The air smelled like cooling rock and struck flint, that permanent aftertaste of everything Carl had done to this place. My hands were glowing. Both of them. The left steady, ice-blue, precise and quietly proud of it. Its twin ran warmer, 3.

1 degrees hotter, the blue-white shifted slightly toward something that made my peripheral vision blink. Carl's fingerprint. The imperfection I'd refused to let anyone fix. Fifty-one times. That's how many repetitions I'd done since Carl went under. Not touching the frame, feeling it. The boundary between three-dimensional space and whatever sat behind it hummed against my rebuilt fingertips like a guitar string tuned to a frequency my ears couldn't hear but my hands understood.

Each time I reached, the frame was there. Patient. Waiting. Like it had been waiting long before I showed up and would be there long after I was gone, and the fact that I could finally feel it was my problem, not its. The synthesis percentage read 9. 1%. I watched it tick to 9. 2% while the cave turned gold. Dawn broke fully. Light poured through the breach.

Black glass walls caught it and threw it back in angles that made the cave look like the inside of a geode, if the geode had recently hosted a dimensional explosion and was currently housing a woman who hadn't slept. And then Carl woke up. Gradually. The overlay flickered first, a few stray diagnostic readouts appearing and vanishing like someone testing a lightswitch in an unfamiliar room.

Then the environmental overlay reasserted itself, rendering the cave in overlapping data: temperature gradients, structural integrity percentages, a synthesis readout in a font that had no business being that precise. Then, quietly, in the space behind my left ear where Carl's voice always started:"... partially hydrogenated soybean oil." The overlay cycled through stale diagnostics.

"Sorry. I was... I think I was dreaming. Do post-corporeal beings dream? File that. How long was I out?"

"Fifty-one minutes. I counted it in repetitions." I didn't look away from my hands. The frame shimmered between my fingers like heat distortion, except the shimmer was depth, not heat. Dimensions folded so tight they felt like silk.

"And yes, you were dreaming. Something about trans fats, which is either deeply philosophical or you've been accessing my memories of grocery store ingredient labels."

"The integration organized data I had already cached. The dreaming was the indexing." The shimmer pulsed once.

"I have strong opinions about partially hydrogenated soybean oil now. I did not request them."

"Already cached." I flexed my right hand against the sand. The frame buzzed.

"From where?"

"Your aperture experiments. While the wormhole was active, the open terminus was permeable to electromagnetic radiation. Your species broadcasts continuously. In all directions."

"You were stealing our wifi."

"That network was password-protected, Carl." Carl's shimmer pulsed with something between pride and indignation.

"Not from me." I kept that sentence.

"I have now processed four thousand three hundred and twelve online arguments about whether matcha is ceremonial, culinary, or a scam. I possess opinions about Darjeeling steep times that I did not want and cannot unlearn. Your species has a very complicated relationship with hot leaf water."

"Carl. How much of the internet did you absorb?"

"Comprehensive but unevenly distributed. Extensive data on food preparation. Almost nothing on bridge engineering." The shimmer flickered.

"Like a library assembled by someone who kept dropping books on the stairs."

"Focus." The author's narrative has been misappropriated; report any instances of this story on Amazon. The pause was different this time. Something other than conversational scatter. The quiet hum of a diagnostic sweep it didn't want to share.

"How are the hands?" he asked. And the way he asked it (careful, almost clinical, but with something underneath that sounded like a person checking on stitches they'd sewn themselves) told me everything about what the rebuild had cost him. I flexed both hands. The right pulsed. The left stayed steady.

"The hands are good, Carl. Better than good." I held them up, watching the blue-white glow paint the cave walls in shifting light.

"I've been at it all night. The frame is responsive. It's not just a boundary anymore; it's a door. And my hands are on the handle." I closed my hands once. Opened them. Closed them.

"Carl. While you were asleep. There was someone in the cave." The overlay stuttered, a micro-flicker, the diagnostic equivalent of a person blinking too fast.

"Someone."

"A man. Leaning against the wall. Jeans, sneakers, T-shirt that said 'World's Okayest Symbiont.' He watched me practice, said 'the hands are good,' and lay down on the floor. Then he was gone." What followed had the quality of a processor encountering input it doesn't have a category for and deciding, very quickly, to build one.

"I... the perceptual layer of the anchor interface, at early synthesis stages, can produce transient visual artifacts. Dimensional energy interacting with your rebuilt visual cortex, particularly during sustained frame contact, could generate..."

"Carl. The T-shirt."

"... I don't have an explanation for the T-shirt."

"It smelled like printer paper." Another micro-flicker in the overlay. Carl was running diagnostics. I could feel them, the quick computational sweep of my sensory pathways, checking for aberrant signals, cross-referencing the visual cortex logs with the dimensional interface's activity record.

"I am not finding evidence of an external entity," Carl said.

"But I am also not finding evidence that your visual cortex was malfunctioning." The shimmer cooled a fraction.

"The overlay was not active during my sleep cycle. I don't have complete telemetry for the period in question."

"So you don't know what it was."

"I don't know what it was." The admission cost him something. Carl's voice when admitting ignorance had a texture: careful, measured, the syllables placed with the precision of someone walking across ice they're not sure is thick enough.

"I will monitor for recurrence."

"It said the same words I said to you. Right before you fell asleep." The silence was back. Longer this time.

"I will monitor for recurrence," Carl said again. And then, with the deliberate redirect of someone who has decided that the next subject needs to be a different subject: "Three sites remaining on this planet." The overlay populated with data I hadn't asked for: distance to target sites, synthesis projections, fold integrity. Carl's version of changing the subject by being useful.

"The nearest is 4. 1 kilometers northeast. Estimated walking time at your current physiology: thirty-four minutes."

"Walking."

"Walking is the traditional method of ground-based..."

"Carl. If I can feel higher dimensions with my hands, if I can touch the frame and it pushes back, what exactly are we walking for?" Cathedral silence. The kind that meant I'd asked a question Carl had been hoping I wouldn't ask for at least another twelve hours.

"Ah," he said.

"Ah?"

"The theoretical basis for what you're describing is well within the anchor system's capabilities."

"Great. So we fold."

"The last time my civilization attempted large-scale dimensional folding without proper integration, the failure mode was..." A pause. The overlay stuttered.

"... planet-cracking dramatic."

"Planet-cracking dramatic. That's a hell of a euphemism."

"Your hands are still integrating. The right one especially. More sensitive, potentially more powerful, but also more unpredictable. Small-scale perception is one thing. Folding spacetime through an untested interface is..." He stopped.

"Is what?"

"I don't know what would happen to you if it went wrong." No tangent afterward. No escape hatch. Just the statement, sitting in the space between us like a structural beam someone had accidentally exposed. I don't know what would happen to you. My mother had never once told me to be careful. She did not have the word; she had the checking. Carl had just found the word. Fear that was personal, not procedural. I stood up.

The cave was bright now, dawn fully committed, the breach overhead showing a sky that was shifting from indigo to something I didn't have a human word for. My hands left the sand and the frame went with them, not physically, but as a presence. A readiness. Like standing up from a piano and still feeling the keys in your fingers.

"Here's what's going to happen," I said.

"We fold to the 4. 1 kilometer site. Controlled conditions. You monitor every microsecond. We set a deviation threshold, your call on the number. If anything looks wrong, we abort."

"Five percent. If energy cascade deviates more than five percent from predicted, we abort."

"Done. Five percent."

"But Morgan, if this goes wrong, if you tear something structural in local spacetime, dimensional wounds don't heal like biology. They spread. I can fix your hands. I can rebuild your nervous system. But if you crack the manifold, the wound propagates. Outward. Permanently. And I don't know how to fix that." That landed.

"You would try."

"Yeah," Carl said, and the word was so small and so human that it landed like a stone in deep water.

"I would try everything I know. But I might not be enough."

"Then we make sure you don't have to be." I flexed my right hand.

"4. 1 kilometers. You and me. Like debugging before production deployment." The overlay simplified. One clean display. A green waypoint. Fold integrity. Hand calibration. FOLD PROTOCOL: READY"Your hands really are good," Carl said. I didn't answer. Didn't need to. The glowing list in the sand behind me said test the hands, and the hands were good, and Carl knew it, and the knowing was sitting between us in a shape neither of us was going to name.