Riddle of the Final Mile

The riddle wasn't carved in stone, but it might as well have been. Three months of morning runs, and Elena still couldn't read him.

David moved beside her in the predawn darkness, his breathing rhythmic, measured. Always exactly two paces ahead, his back a sphinx in silhouette—broad, inscrutable, carrying secrets he'd never spoken aloud. They'd been friends for seven years, since the corporate merger that made them desk neighbors, then drinking buddies, then training partners when she signed up for her first marathon.

Now, at mile four, he slowed.

Elena matched his pace, something tightening in her chest. David never slowed. Not for rain, not for hangovers, not for the morning she found out her mother had died and showed up at his doorstep at 4 AM with tear-streaked cheeks.

"You okay?"

"Fine." His voice was neutral, but the lie carried the same weight as the others. The cancelled trips. The unanswered texts. The way he'd started looking at her like she was something he needed to memorize before forgetting.

She saw them in his hand during the water break—the orange bottles. Doxycycline. Vitamin D. B-complex. A pharmacy of things he'd never mentioned needing.

"Since when do you take vitamins?" Elena asked, keeping her voice casual. The same way she'd asked about the bruises on his arms two weeks ago. The same way she'd asked why he wasn't at work last Tuesday.

David's fingers closed around the bottles. "Since I decided I want to see forty."

"You're thirty-six."

"Exactly." He looked at her then, and for the first time in three months, the sphinx's face cracked open. "Elena. Stop running from it."

"From what?"

"From what you already know."

She remembered the phone call she'd overheard three weeks ago—oncology, they'd said. She remembered how he'd flinched when she hugged him after that five-mile PR. She remembered how he'd started taking the long way to the water fountain, like every movement was calculated.

The riddle solved itself in the space between heartbeats.

"Why didn't you tell me?"

"Because you're my friend," he said simply. "And because when you know, you start treating me like something that's already gone."

Elena reached for his hand, her fingers trembling against the pills that had become his new religion. "I'm not running anywhere."

David's smile was small, genuine—the first one she'd seen in months. "Then let's finish this mile together."