Riddles at the Midnight Pool

The pool was empty at 3 AM, the water still as glass, reflecting the distant city lights in broken patterns. Marco had worked the night shift at the resort for six years, long enough to watch his hair thin at the temples, long enough to know which guests came here to forget themselves and which came to remember something they'd lost.

She appeared on his third month of insomnia, always at the same hour, always alone. Dr. Elena Vares—sphinx of the philosophy department, his ex-wife used to call her, before she left him for someone who didn't work nights. Elena would sit at the edge of the pool, legs dangling in the water, smoking cigarettes that burned down to the filter.

"You know what they used to believe?" she asked him one night, without preamble. "That the sphinx's riddles weren't tests. They were warnings."

Marco leaned against the maintenance closet, watching the chlorine ripple around her ankles. "I thought the sphinx ate people who couldn't guess."

"That's the comforting version." Elena exhaled smoke into the humid air. "The other version is that she let them pass because the truth was worse than the lie."

He should have asked what she meant. Instead, he said, "My hair started falling out three weeks ago. Stress, probably. But sometimes I wonder if it's just deciding I'm done with this version of myself."

Elena looked at him then, really looked at him, with eyes that held the weight of someone who'd spent too much time studying human suffering. "The riddle isn't why you're losing it, Marco. The riddle is what you'll do when it's gone."

She never came back after that night. He learned later she'd been removed from the university—unspecified ethical violations, something about a research study on existential dread and decision-making. Sometimes, standing alone at the pool in the dark, he wondered if she'd been warning him or testing him. The sphinx, after all, didn't share her secrets. She only waited to see which answer would destroy you first.