The Obsession

The coffee had gone cold again.

Ada Morrison stared at the cup on her desk—her fourth of the night, barely touched—and couldn’t remember when she’d poured it. An hour ago? Two? Time had that elastic quality when she was deep in research, stretching and compressing until the numbers on her computer screen mattered more than the clock on the wall.

She rubbed her eyes and refocused on the sonar overlay. The Bedout crater spread across her monitor in false-color topography: deep blues for the lowest points, reds and oranges for the crater rim. Five kilometers deep at the center. Thirty kilometers across. A scar punched into the Earth’s crust 251 million years ago when something massive and terrible had fallen from the sky.

Something massive and terrible that didn’t quite fit the models.

Ada toggled between data sets. The 2004 geological survey. The 2011 magnetic mapping. Her own analysis from last year. She’d run the comparison algorithm seventeen times now, checking her math, questioning her assumptions, looking for the flaw in her reasoning.

The numbers didn’t change.

The magnetic signature at the crater’s center was too strong. Too concentrated. Too organized for random impact debris.

She pulled up a comparison: Chicxulub crater in Mexico, the impact that killed the dinosaurs. Its magnetic signature was exactly what you’d expect—diffuse, scattered, consistent with shattered asteroid material distributed by the impact.

Bedout’s signature looked almost… structural. Like something intact was buried at the center.

“That’s impossible,” she muttered, and took a sip of cold coffee without thinking. Grimaced. Set it down.

Her neck ached. Her eyes burned. She’d been staring at these screens since—when? Since her last class ended at 4 PM? That was ten hours ago.

2:47 AM.

She should go home. Everett would be asleep by now, probably sprawled across their bed in that way he did when she wasn’t there to complain about it. He’d left her a text around midnight—just a heart emoji, because he knew better than to ask when she’d be home. After seven years together, he understood the signs. The obsessive focus. The way she’d come home from teaching and go straight to her office without stopping for dinner.

The way she’d touch the pendant at her throat and stare at nothing, thinking.

Ada’s hand went to it now, almost unconsciously. The heirloom. Her grandmother’s heirloom, carved from some stone Ada had never been able to identify despite sending samples to half a dozen laboratories. Warm against her skin, always warm, even when logic said it should be cool metal and inert crystal.

The symbols carved into its surface caught the light from her desk lamp. She’d traced them ten thousand times, knew every curve and angle, had compared them to every known writing system from Polynesian petroglyphs to Easter Island rongorongo. Nothing matched. Nothing even came close.

“What are you?” she murmured, turning it between her fingers.