He imagines the water running in thick curving lines, like the drawings of the tree’s roots, cutting through stone and spilling over the earth. And then he reverses the flow of water, letting his imagination take over, and he sees the water racing north, uphill, towards the Catskills, weaving around towns, beneath bridges, rushing over stones and cutting through the trees, until it lands at the feet of Alice Pearson, who stands on the shore, looking out at the place where the water meets the sky.