My sister called me at midnight and whispered, “Turn off every light. Go to the attic. Don’t tell your husband.” I thought she was losing her mind — until I looked through the floorboards….

The ringtone, a sharp, digital chime I’d assigned only to her, cut through the rain-soaked silence of our bedroom. For a half-second, a wave of pure irritation washed over me. I almost ignored it. My husband, **Caleb Morrison**, was a warm, solid presence asleep beside me, his breathing a slow, rhythmic tide in the darkness of our house just outside Arlington, Virginia. Rain, a relentless, steady whisper, tapped against the glass of our bedroom windows. It was the kind of night that was made for sleep.

On my nightstand, the baby monitor glowed with a soft, reassuring green light, a beacon from our son’s empty nursery. Four-year-old **Noah** was spending a rare weekend with Caleb’s parents, a fact that had granted me my first deep, uninterrupted sleep in weeks. I’d been looking forward to this quiet weekend, a brief pause in the beautiful chaos of motherhood.

But then, through the haze of sleep, I saw the name on the screen.

**Mara.**

My sister. Mara worked for the FBI, in a world of acronyms and hushed conversations that I never quite understood. She lived by a set of unwritten rules, and one of them was an absolute prohibition on late-night calls. She never called this late unless a world had ended. A family member had died, or something catastrophic was seconds away from happening. My heart began a frantic, panicked drumming against my ribs. I pushed myself upright, the sheets pooling around my waist.