Riddles in the Chlorinated Dark

Elena stood at the edge of the hotel pool at 3 AM, her husband still sleeping upstairs in room 314. The water reflected the orange glow of security lights, a burning eye watching her insomnia. She'd found the strand of hair earlier that evening—long, dark, tangled in his watchband when he'd returned from his "conference swim." Not her hair. Not her shade of brown.

She slipped into the water, fully clothed. The chlorine bit at her skin as she began swimming laps, each stroke a violent question mark. Mark had always loved riddles. Last year, for their anniversary, he'd dragged her to the British Museum to stare at the limestone sphinx in the Great Court. "The riddle isn't the answer," he'd whispered, pressing his palm against the glass case. "It's that something wants to be understood."

Now, floating on her back in the middle of the empty pool, Elena understood. The sphinx's riddle wasn't what walks on four legs then two then three. The riddle was how you could know someone for twelve years, share their bed and their coffee and their debts, and still not know them at all.

She remembered the woman from the hotel bar earlier—orange silk dress, laughing too loudly at Mark's terrible jokes. Her hair had been dark, loose, catching the light like something alive.

Elena dove deep, holding her breath until her chest burned. Below the surface, the world was muffled and blue, all questions suspended. She wished she could stay down here forever, sphinx-like, guarding her own riddle: What destroys you while leaving you intact?

But her lungs betrayed her. She surfaced gasping, gasping, gasping, as the first hints of dawn began to bleed into the sky—tangerine, apricot, the color of fresh bruises.

By the time Mark woke at eight, she'd be gone. No note. No explanation. Let him solve that riddle.