What the Dog Knew

The coaxial cable hung limp in Marcus's hand as he knocked on the door for the third time. Service calls after midnight were never good news. Someone was either lonely, desperate, or both.

The door swung open and there she stood—Elena, his physics lab partner from twelve years ago. The recognition hit them both simultaneously, like a live wire suddenly touching ground.

"Marcus?"

"Elena. I... your internet's down."

She laughed, and it was the same sound he'd heard across laboratory benches, over beakers and photon measurements. "Come in. I was making dinner anyway."

Her apartment smelled like burnt garlic and something else—something familiar. A golden retriever mix approached him, tail thumping a careful rhythm against the wall.

"That's Barnaby," she said. "He doesn't bite. He judges, though. Don't you, boy?"

The dog pressed his wet nose against Marcus's knee and something in his chest loosened. He'd forgotten how animals could do that—bypass your defenses entirely.

While he worked on the cable connection in the corner, Elena stirred something at the stove. "Remember that experiment we ruined junior year? The one with the wrong concentration of solutes?"

Marcus paused, crimping the connector. "You blamed it on the spinach in the salad we'd had for lunch. Said your brain was still thinking about chlorophyll concentrations."

"I still think about that sometimes. How we spent three weeks reconstructing that data set, eating nothing but spinach salad and vending machine pretzels." She slid a bowl toward him. "It's actually decent this time."

He sat across from her, the dog resting his head on Marcus's foot. The cable modem's lights flickered to life—connection established. But he didn't move to leave.

"I'm getting divorced," Elena said suddenly, staring at her spinach. "He said I was too much in my head. Always thinking about concentrations and wavelengths and everything that doesn't matter."

Marcus looked at her—really looked at her—for the first time in twelve years. "Everything matters. That's the problem. That's why we ended up in different labs."

The dog whined softly, pressing against his leg.

"Could you," Elena started, then stopped. "Could you come back tomorrow? Check the signal strength? I think it might be... intermittent."

Marcus smiled, and it felt like reconnecting a cable he hadn't known was severed. "I'll be here at seven. Bring more spinach."