The highway hummed beneath the tires, a monotonous drone that matched the mood inside the ten-seater SUV. Dad, as always, was a statue behind the wheel. My step-mom, Linda, dozed in the passenger seat. My half-sister, Chloe, was lost in her headphones. And my mom, Sarah, sat quietly in the middle row, staring out at the blur of pines. Eighteen hours to Grandma’s. Absolute fucking torture. “Truck stop in five miles,” Dad a...