[THE THRESHOLD BETWEEN DIMENSIONS | CYCLE 847 OF THE SHADE CALENDAR | STARDATE-ADJACENT] The case came to me via stapler morse code at three in the morning, which meant Clive had already made up his mind about it before I finished decoding. Three short, one long, two short. *Umbral*. Not the kind of word you want blinking out of an orange Swingline stapler at three in the morning, but here we were. I poured myself something that was almost coffee and listened to Clive tap out the rest. A client named Vesper Null had been flagged for phantom opacity charges on her dimensional credit report. She had never borrowed shadow. Never leased darkness. Never so much as glanced at someone else's silhouette sideways. And yet there it was: a full opacity deficit sitting in her shade ledger like a parking ticket from a dimension she had never visited. "She did not do this," Clive tapped. Dots and dashes appearing in the margin of my notepad, which was concerning because I did not remember giving him permission to use my notepad. I agreed. Vesper Null was a bookbinder. She worked with light, actually—restoring old manuscripts, reinforcing faded text, that sort of thing. The kind of work that leaves your fingers stained and your eyes tired. She had no reason to borrow invisibility. This was precisely the problem. The Umbral Plane works on light in, light out. To be seen, you spend opacity. To disappear, you buy it from someone who does not mind being unseen. For eleven thousand cycles, the system held. Shade citizens lived their shadowy lives. Tourists visited and purchased temporary invisibility for privacy or novelty. Everyone kept track in the great ledger, and no one ran a shadow Ponzi scheme on the side. Until someone did. Mochi sat in the corner of my office, dome-shaped and silent as ever, radiating the specific judgment non-verbal entities reserve for those who ask obvious questions. I had not asked a question yet. I felt the judgment preemptively. The Shade Parliament was in chaos, apparently. Invisibility had become a commodity. Some citizens were lending their natural opacity to anyone willing to pay—debtors fleeing creditors, rival faction members avoiding surveillance, spouses avoiding other spouses. A secondary market in shadow credentials had developed faster than anyone could track, and the Fractal Mafia had noticed because the Fractal Mafia always notices. Quantum printers. That was the term doing the rounds. Devices that could manufacture shade-credentials wholesale, spitting out forged opacity permits faster than the Shadow Bureau of Investigation could audit them. Three cycles backlogged, minimum. I had seen the lines at the SBI office. Metaphorical lines. Probably metaphorical. I took the case. Vesper Null met me at a cafe that existed halfway between dimensions, the kind of place where the menu was suggestions rather than commitments and the coffee tasted like someone had described coffee to the chef. She was a small entity, faintly luminescent, the kind of person who had probably never intentionally hidden from anything in her life. "They say I borrowed opacity from seventeen different citizens," she told me, her voice carrying the exhaustion of someone who had repeated this information to too many bureaucrats. "Seventeen. I have never met seventeen different citizens. I know three people. My supplier, my landlord, and the entity who fixes my binding press." I wrote this down. "The entity who fixes your binding press. A shade citizen?" "A mobile shadow. Very reliable. Sends me staple morse code when the parts arrive." I looked at Clive. Clive said nothing, which was unusual, but then Clive was always silent until he had something worth saying. Or tapping. The investigation led me through the usual channels: creditors who could not explain the charges, faction records that did not quite align, a trail of phantom signatures in the great opacity ledger. The Quantum printers were creating demand where no supply existed. Someone was borrowing invisibility on behalf of people who did not know they were borrowing it, then collecting payment from parties unknown. The Fractal Mafia had their fingers in it, of course. They always did. But this was not their design. This was something stranger—a crack in a system no one expected to fail. The Umbral Plane's camo infrastructure had sprung a leak, and opacity was draining out everywhere. I found the source in a basement that existed slightly less than the building above it. A printer, if you could call it that—a humming crystalline structure that ate light and excreted forged shadow credentials in neat little strips. Someone had left it running. Someone always does. I turned it off. I am not sure I was supposed to. The paperwork that followed was extensive. Vesper Null's credit report was cleared within the cycle. The printer went to the SBI, who were grateful in the abstract way bureaucracies are grateful when you solve their problem and create twelve new ones. The Fractal Mafia sent a congratulatory fruit basket to my office, which was probably also a warning. The Umbral Plane is still there, still shadowy, still working on light in and light out. But the infrastructure is stressed now. Trust has been damaged. And somewhere in the great ledger, there are phantom charges still circulating—debts that belong to no one, borrowed by everyone, waiting for someone to notice. Mochi watched me file the final report and said nothing. Mochi never says anything. But Clive tapped out a final message as I shut down for the night: two dots, pause, three dashes. Short-long-long. *Stay dark.*