The Lost Years

Natasha vanishes under suspicious circumstances. Clint investigates, struggling to adjust to life without her. But evidence points to a disturbing conclusion about his partner, and even finding her might not be enough to save her. T for strong language. Pre-Avengers (or "Shield Agents only" AU), non-MCU-compliant (no AOU), some H/C. Strong Clintasha bond-is it romantic? Who knows?