Author: Clara Serrano (Jackie's mom) about my 2xR2R2R Grand Canyon FKT, from a mother's perspective. She's focused and organized. My worries hang unspoken. A few hours of sleep. Chatty guy at the start, playing music, drops sock; different wavelength. And she's off, flying down the canyon walls. Small jiggling headlamp, flickering and dimming, back and forth across the switchbacks down, down, down and out of sight Back to bed; relax and sleep. Hours after sunrise, we trot to