And whither then? I cannot say. 

Crossing a road during a hike. A trace of man made amongst the trees, curving out of sight. 

“The Road goes ever on and on/ Down from the door where it began./ Now far ahead the Road has gone,/ And I must follow, if I can,/ Pursuing it with eager feet,/ Until it joins some larger way/ Where many paths and errands meet./ And whither then? I cannot say”

J.R.R. Tolkien, The Fellowship of the Ring (The Lord of the Rings, #1)