Ellery stared at the seven-figure balance on her laptop screen. There was no joy in her chest. Only a suffocating sense of urgency.

Her stomach suddenly let out a loud, hollow growl. The physical vibration reminded her that this young, healthy body desperately needed fuel.

She pushed her chair back and walked into the cramped kitchen. She yanked the refrigerator door open. The harsh yellow light illuminated a depressing sight: a carton of expired milk and half of a rock-hard, stale bagel wrapped in plastic.

She grabbed the bagel, tore off the plastic, and took a bite. It scraped against the roof of her mouth, but she chewed mechanically, forcing it down her throat. Her brain was already moving a million miles a minute.

She pulled open a drawer, grabbed a yellow legal pad and a thick black Sharpie, and sat back down at the tiny dining table.

At the very top of the page, she pressed the marker down hard and wrote: SHELTER. She underlined it twice, the ink bleeding through the cheap paper.

Her mind violently snapped back to the third year of the apocalypse. The deep freeze. The endless, bone-crushing cold that turned human breath into ice crystals instantly.

She remembered shivering uncontrollably in a filthy corner of the bunker, her lips cracked and bleeding. And she remembered Kendal walking past her, wearing a brand-new, pristine designer puffer jacket that smelled like fresh laundry.

Ellery's eyes narrowed. She remembered exactly what was hanging around Kendal's neck that day. A dull, worn-out gold necklace emitting a faint, almost imperceptible warm glow.

Kendal had flaunted it. She had crouched down, shoving the necklace in Ellery's face, bragging about the magical, infinite space hidden inside the metal. A space that held entire warehouses of food. A space where she could grow fresh strawberries while the rest of the world starved to death.

Ellery's grip on the Sharpie tightened so hard the plastic casing creaked. The tip of the marker pierced the yellow paper, leaving a jagged black hole.

She would never forget that necklace. It wasn't Kendal's. It was hers.

It was the only thing wrapped in her blankets when she was abandoned at the orphanage steps. It was the only physical tether to her real bloodline. But on Kendal's sixteenth birthday, Sharon had ripped it from Ellery's neck, claiming it was too "ugly" for Ellery to wear and gifting it to Kendal as a joke.

Ellery slammed her fist onto the table. The stale bagel bounced off the wood. She hated her past self. She hated how weak she had been, handing over a literal god-tier survival tool just to keep the peace in a house that hated her.

She closed her eyes. She mapped out the exact location of the necklace. It was sitting in Kendal's pink velvet jewelry box on her vanity.

She immediately scrapped the idea of breaking into the house to steal it. Kendal was a hysterical, paranoid brat. If she noticed it missing, she would call the cops. A police investigation three days before the end of the world would completely derail Ellery's hoarding schedule.

She opened her eyes. She grabbed her phone and opened the browser, typing furiously. High-end jewelry replica shops Seattle.

She scrolled past the cheap tourist traps and found exactly what she needed. An underground studio in the arts district that specialized in creating flawless, indistinguishable fakes for wealthy socialites who didn't want to wear their real diamonds in public.

She grabbed her trench coat off the back of the chair, snatched her car keys, and bolted out the door.

She drove her beat-up Honda Civic through the slick, rain-soaked streets of Seattle. The sky was an oppressive, bruised purple.

She parked illegally, shoved open the heavy glass door of the studio, and bypassed the display cases entirely. She walked straight to the back workbench where a jeweler with a jeweler's loupe over his right eye was polishing a ring.

Ellery pulled out her phone and showed him a rough sketch she had drawn of the old gold crest necklace.

The jeweler squinted at it and shook his head. "Custom mold. Ancient engraving. That'll take two weeks minimum."

Ellery didn't argue. She reached into her coat pocket, pulled out two thick stacks of crisp hundred-dollar bills she had just withdrawn from the bank, and slammed them onto the workbench.

"Change of plans," Ellery said, her voice flat and commanding. "I don't need a replica. I need the most obnoxious, flashy, massive fake diamond necklace you have in this store. Right now."

The jeweler's eyes widened at the cash. He instantly dropped the ring, turned around, and spun the dial on a hidden wall safe.

He pulled out a black velvet tray. Resting in the center was a thick, gold-plated chain holding a massive, flawlessly cut cubic zirconia pendant. It looked like a chandelier.

Ellery stared at the tacky, blindingly bright piece of junk. A cold smile touched her lips. It was perfect. She knew Kendal's desperate, new-money aesthetic better than anyone.

She shoved the cash toward the jeweler, grabbed the velvet box, and shoved it into her pocket.

She walked back out into the freezing rain. She stood on the wet pavement, pulled out her phone, and dialed Kendal's number. It was time to make a trade.

Ellery arrived at the upscale French café downtown ten minutes early. She chose a secluded booth in the far back corner, away from the windows.

She ordered a black coffee. She took off her coat and deliberately placed her mid-tier, three-hundred-dollar leather handbag right in the center of the table, making sure the logo was facing the empty seat across from her.

Twenty minutes later, Kendal finally strolled in. She was wearing a beige designer trench coat that Ellery had paid for two Christmases ago.

Kendal slid into the booth. Her eyes immediately darted to Ellery's handbag, then scanned Ellery's plain sweater, her lips curling into a faint sneer of superiority.

Ellery casually reached into her pocket and pulled out the premium black velvet box. She slid it across the table, stopping it right next to her coffee cup.

"So?" Kendal demanded, not even bothering to say hello. She leaned forward, her eyes wide with greed. "How much are we up? Dad is freaking out. He wants to know when we can pull the cash out."

Ellery took a slow sip of her black coffee. The bitter liquid burned her tongue.

"The crypto exchange is doing a scheduled weekend maintenance," Ellery lied smoothly, not breaking eye contact. "But the profits are locked in. It doubled again."

Kendal let out a loud, breathless squeal, falling back into the leather booth. Her shoulders dropped in relief. But then, her eyes locked onto the black velvet box.

Without asking, Kendal reached her hand across the table, her manicured fingers clawing toward the box.

Ellery reacted instantly. She slammed her hand down on top of the velvet, pinning it to the table. She widened her eyes, putting on a flawless performance of a woman caught hiding something expensive.

"What is that?" Kendal asked, her voice dropping an octave, her eyes narrowing suspiciously.

Ellery hesitated. She slowly lifted her hand and cracked the lid of the box open just a fraction of an inch.

The bright, warm light from the café's crystal chandelier hit the massive cubic zirconia dead center. The fake diamond fractured the light, shooting blinding, rainbow-colored sparks across the table.

Kendal gasped loudly. Her jaw literally dropped. She stared at the stone like she had been hypnotized.

"It's... it's a gift," Ellery stammered, acting deeply uncomfortable. "From that Wall Street whale I told you about. A thank-you for managing his portfolio."

Ellery let out a heavy, dramatic sigh and snapped the box shut. "It's way too flashy for me. It looks ridiculous. I'm taking it to the pawnshop on 4th Avenue this afternoon to liquidate it for cash."

Kendal's body lunged forward. Her chest pressed against the edge of the table. Pure, unfiltered jealousy radiated from her pores.

"Are you insane?" Kendal shrieked softly. "You can't pawn that! It's gorgeous! Ellery, please. Give it to me. It perfectly matches the gala dress I just bought."

Ellery frowned, shaking her head firmly. "No, Kendal. I need the cash. I'm putting together some... special emergency supplies. I need the liquidity."

Kendal rolled her eyes so hard she practically looked at her own brain. "You and your stupid doomsday prepper garbage. You're a paranoid freak, Ellery."

Ellery's eyes flashed. She pointed a finger straight at Kendal's chest. Specifically, at the dull, tarnished gold chain resting against her collarbone.

"You want it?" Ellery asked, her voice turning sharp and unreasonable. "Fine. Trade me. Give me back my orphanage necklace."

Kendal froze. She looked down at her chest, then back at Ellery like she was looking at a mental patient.

"I'm serious," Ellery pushed, leaning in. "If the world is going to hell, I want the only thing that actually belongs to me. The only thing I have from my real parents. Give me the old chain, and you can have the diamond."

Kendal let out a sharp, mocking laugh. She didn't hesitate for a single second. Her hands flew to the back of her neck. She fumbled with the clasp, her fingers trembling with excitement.

She yanked the dull gold necklace off and tossed it onto the wooden table like it was a piece of garbage. It landed with a soft metallic clink.

Ellery's heart slammed against her ribs. She forced her breathing to remain steady. She slowly reached out and curled her fingers around the cold metal.

She pushed the velvet box across the table.

Kendal snatched it. She ripped the box open, pulled out the fake diamond, and immediately fastened it around her neck. She pulled out her phone, opened her front-facing camera, and started taking rapid-fire selfies, completely ignoring Ellery.

The moment the real gold necklace rested in Ellery's palm, a faint, microscopic jolt of electricity zapped her fingertips. It was the physical signature of the space.

Ellery stood up abruptly. She pulled a crisp twenty-dollar bill from her wallet and threw it on the table to cover the coffee.

"I have to go," Ellery said coldly.

Before Kendal could even look up from her phone screen, Ellery turned on her heel and walked out of the café.

She pushed through the glass doors, the cold wind hitting her face. She practically ran to her car. She threw herself into the driver's seat, locked the doors, and gripped the steering wheel with white knuckles. She had it. She finally had her lifeline.

Ellery drove straight out of the city limits. She bypassed her apartment entirely. She needed absolute, unquestionable privacy.

She pulled into the cracked asphalt parking lot of a rundown motel off the interstate. The neon sign buzzed, flickering in the gray afternoon light. She walked into the lobby, slapped a fifty-dollar bill on the counter, and refused to give her real name. The clerk didn't care. He slid a rusty key attached to a cheap plastic diamond across the counter.

Room 7.

Ellery walked down the exterior corridor, her boots crunching on gravel. She shoved the door open, stepped inside, and slammed it shut. She threw the deadbolt. She slid the metal chain into place.

The room smelled like stale cigarette smoke and bleach. She walked straight to the window and yanked the heavy, dust-caked blackout curtains completely shut. The room plunged into darkness.

She reached over and clicked on the bedside lamp. It cast a sickly, yellow glow over the stained bedspread.

Ellery sat on the edge of the mattress. She opened her palm, revealing the dull gold necklace. She brought it close to the light, inspecting the heavy pendant. Carved into the metal was an intricate, ancient crest-a shield flanked by two wolves. She didn't recognize it as the Harvey family crest. To her, it was just the lock to her survival.

She unzipped her handbag and pulled out a small, red plastic first-aid kit. She snapped it open and extracted a sealed, sterile lancet.

She didn't hesitate. She twisted the plastic cap off the needle, pressed the tip against the fleshy pad of her left index finger, and pushed down hard.

A sharp prick of pain shot through her finger. She squeezed the tip, forcing a thick, dark drop of blood to bead on the surface of her skin.

She hovered her bleeding finger directly over the center of the wolf crest. She let the drop fall.

The blood hit the cold metal. But it didn't smear. It didn't roll off. The gold absorbed the blood instantly, sucking it into the microscopic grooves of the metal like a sponge.

A blinding flash of white light erupted from the pendant.

Ellery's stomach dropped. A violent wave of vertigo hit her, making her ears pop. The motel room vanished.

When she opened her eyes, she braced herself. She expected to see the sprawling, high-tech underground bunker Kendal had bragged about. She expected steel walls and endless shelves.

Instead, she choked on a lungful of air that smelled like rotting earth and mildew.

Her consciousness was violently yanked into a narrow space. She wasn't physically standing; her physical body remained slumped on the stained bedspread, but her mind was trapped inside a literal box. It was barely half a meter square, like the inside of a military crate. She couldn't even turn her phantom perspective.

She mentally reached out, feeling the texture of the wall. A sharp sensation of rotten wood scraped against her virtual palm.

"What is this?" she whispered, her voice cracking.

Panic seized her throat. Was this it? Did her rebirth alter the timeline? Did she break the artifact? This wasn't a bunker. This was a grave.

She shifted her viewpoint downward. The floorboards were soft and spongy. But right in the center, embedded in the rot, was a small, rusted metal plate.

Ellery focused her will, lowering her perspective to the floor. She mentally brushed the grime off the plate. It was a shallow depression, shaped roughly like a balancing scale. It looked empty. Hungry.

Her brain fired rapidly. She remembered Kendal's bizarre behavior in the apocalypse. Kendal had never hoarded food. She had hoarded jewelry. She had sent men to their deaths just to raid abandoned pawn shops for gold rings and watches.

Ellery's hands flew to her ears. She was wearing a pair of fourteen-karat gold hoop earrings.

She unclasped the left hoop, her physical fingers trembling in the motel room. She focused her mind on the rusted metal plate inside her spatial vision. With a thought, the earring vanished from her fingers and appeared directly over the plate, dropping onto the rust.

The moment the gold touched the rust, a low, vibrating hum rattled Ellery's teeth. The gold hoop began to melt. It liquefied into a glowing, molten puddle and was instantly sucked into the metal plate.

A horrific screeching sound echoed through the tiny space. The rotten wooden walls violently shuddered.

The sheer force of the expansion shoved her consciousness backward as the walls physically pushed outward. The ceiling groaned and lifted. The space expanded by at least two feet in every direction. The black, rotting wood lightened in color, hardening into solid, sturdy oak planks.

Ellery's breath caught in her throat. Her eyes widened in absolute shock.

It wasn't broken. It was a living, breathing entity. It was an evolutionary dimension that fed on precious metals. Kendal's bunker hadn't started as a bunker. She had fed it the gold of a thousand dead survivors to build it.

Ellery focused her mind on the motel room. The vertigo hit her again, and her consciousness instantly slammed back into her physical body on the stained bedspread.

She looked at her phone. She looked at the 1.1 million dollars sitting in her bank account.

A manic, feral grin stretched across her face. She knew exactly what she had to do. She was going to feed this space until it became a fortress.