Two helium-inflated balloons that someone has released: Each balloon trails a shimmering ribbon behind it. The balloons aren’t tied together, but they rise together. The wind blows them to the east, over Alaskan Way and then over the city. The green balloon moves steadily upward; and the red balloon keeps apace for a time, swaying back and forth beneath the first. The red balloon nods a few last circles around the green balloon’s tail, before the green one rises so that its ribbon is out of reach of the red. They continue their ascents separately.