chapter 12_A Sister’s Restless Search

Weronika "Wera" Ostrowska

​The radiator in my downtown Warsaw apartment had been bleeding a high-pitched hiss for three days, but I couldn’t bring myself to cross the room and tighten the valve. Silence felt like a luxury I couldn't afford. If the room went quiet, my brain would fill the space with the sound of the empty stairwell down at Kalina’s building.

​I leaned forward, my forehead resting against the hard plastic frame of my center monitor until the cool bezel bit into my skin. The glow from three screens painted my hands a sickly shade of blue and amber.

​Zero percent battery. Last pinged 02:14 AM.

​That was twelve hours ago. Kalina never let her phone die. She was a journalist who lived in constant terror of missing an editor's leak or a source’s encrypted nudge; she slept with a portable power bank taped to the back of her device. Yet there it was, sitting on my network monitor: a flat red line, cold and unresponsive.

​My fingers hovered over the mechanical keyboard, trembling just enough to make the keycaps rattle. I forced a breath down into my stomach, ignoring the sour taste of stale black coffee resting on my tongue. I needed to move. I needed to type. If I stopped typing, the memory of her flat would crawl back up my spine.

​I had used my spare key at 7:00 AM. The air inside her place had smelled wrong not like stale dust or unwashed dishes, but like industrial bleach masking something metallic. Her bookshelves were bare. Not looted, not overturned in a struggle, but deliberately cleared. The hooks where her winter coats usually hung were empty. Even the sticky notes she kept plastered around her desk monitor had been peeled off, leaving faint square outlines in the dust.

​They hadn't just taken her. They had erased her.

​"Come on, Kali," I whispered, my voice raspy from hours of disuse. "You’re smarter than them. Leave me something."

​I brought up the custom terminal window I’d built two years ago when she first started investigating the municipal transport kickbacks. We had a pact: if either of us went off the grid for more than six hours, the other was allowed to breach the secondary mirror we’d set up on a hidden server in Gdańsk.

​I punched in my passphrase, my knuckles white.

​Access Denied.

​I blinked. My pulse hammered against my throat, thick and suffocating. I retyped the string, slower this time, checking every character.

​Access Denied. Root directory unmounted.

​"No, no, no." I slammed my palm against the oak desk, sending a cold shiver through my coffee mug. They hadn't just cleared her physical life; someone was systematically scrubbing her digital footprint in real-time.

​A heavy, suffocating panic squeezed my chest. Kalina was my older sister by four years. When our parents drifted away into their respective second families, leaving us with a crumbling pre-war flat and a box of old photographs, Kalina was the one who bought my school supplies with money she made delivering local papers. She was the anchor. I was just the girl who knew how to make computers talk to each other. Now the anchor was cut, and I was drifting into dark water.

​I dragged my hair back into a messy knot, pinning it with a stray pen, and bypassed the Gdańsk server entirely. If someone was actively wiping her nodes, I couldn't use our front doors. I had to look for the garbage—the digital exhaust every system leaves behind when it tries to clean up too fast.

​I pulled up the raw packet logs from her home router, captured before her ISP connection went dead. Line by line, thousands of strings of hexadecimal code scrolled across my amber screen. It was like reading a ghost’s last words.

​1:58:12 AM - Outbound connection to internal relay.

2:01:45 AM - Mass file deletion initiated.

2:09:30 AM - Hardware override command received.

​I stopped scrolling. My hand froze on the mouse.

​Hardware override.

​You don't get a hardware override through a standard virus or a brute-force hack. That required low-level firmware access—the kind of access sold for six figures on private forums, or handed down through government directives. My stomach churned. What had she stumbled into? She was supposed to be writing an piece on city zoning fraud. Zoning fraud doesn't come with military-grade digital sweeps.

​My eyes burned as I zoomed in on the last three kilobytes of data transferred before her router’s memory was fried. It was corrupted, fragmented junk. But buried in the middle of a string of corrupted code was a tiny anomaly: a sequence of six repeated characters.

​0x4B 0x41 0x4C 0x49 0x5F 0x30

​I translated the hex in my head before my brain even had time to process it.

​K-A-L-I-_-0

​It wasn't part of the wiper code. It was a manual injection. Kalina had sat at her desk while the system was being scrubbed, or while someone was standing over her, and she had managed to type a six-character override tag into the outgoing buffer. It was our childhood shorthand.

​My throat tightened, a dry sob catching in the back of my mouth. She was alive when the wipe started. She was thinking of me.

​I executed a local script to isolate the packet containing her tag. If she left a signature, she might have attached a payload a tiny string pointing to a local IP, an external drive, or a physical location.

​The progress bar on my monitor stretched out. 12%... 34%...

​The silence in the room suddenly felt heavier, almost tactile. Outside my window, the gray sky over Warsaw was beginning to bleed into evening, casting long, bruised shadows across my keyboard. The radiator gave a wet, metallic clunk, then went entirely cold.

​58%... 79%...

​My phone, resting face down on the mousepad, suddenly buzzed.

​I jumped, my heart vaulting into my mouth. The screen illuminated. It was an unlisted number. No caller ID, no location data.

​I picked it up with a slick, sweating hand, holding it to my ear without saying a word. My breathing was too loud in the silent room.

​For three long seconds, there was only static—a soft, white hiss that sounded like distant rain. Then came a sharp, rhythmic sound. Tap. Tap-tap. Tap.

​It was our old code. The rhythm from the bedroom wall we shared as kids.

​"Kali?" I whispered, my voice breaking on the syllable. "Kali, where are you?"

​No voice answered. Instead, a heavy breath rattled through the receiver, followed by a low, mechanical click.

​A voice spoke not Kalina’s, but a man’s, flat and devoid of any inflection, speaking in deliberate, unhurried Polish.

​"She told us you were the clever one, Weronika."

​Before I could process the words, a loud, sharp chime sounded from my multi-monitor setup behind the phone. The progress bar reached 100%, and the decoded payload splashed across my main screen in bright, violent red text:

​PING RECEIVED FROM LOCAL NETWORK: 192.168.1.1

DEVICE LOCATION: CURRENT SUBNET

​The ping hadn't come from somewhere across the city. It wasn't routing through a proxy in Gdańsk or a server in Tallinn.

​The device sending the signal was connected to my own home Wi-Fi router.

​Downstairs, the heavy iron front door of my apartment building clicked open, followed by the slow, deliberate crunch of heavy boots beginning to ascend the concrete stairs.