When the rain started coming down harder than expected, Maya Hernandez and her younger brother, Eli, figured their Saturday would be a washout. They’d planned to walk to the corner store for hot chocolate, but by mid-afternoon the sidewalks were slick, the gutters were overflowing, and the neighborhood sounded like a thousand tiny waterfalls.
Still, they stepped outside—hoods up, hands in pockets—until a sound stopped them near the end of their block.