we left about midnight and walked down the hill in silence. the night was muggy, and all around me i felt the same pressure, a sense of time rushing by while it seemed to be standing still. whenever i thought of time in puerto rico, i was reminded of those old magnetic clocks that hung on the walls of my classrooms in high school. every now and then a hand would not move for several minutes -- and if i watched it long enough, wondering if it had finally broken down, the sudden click of the hand jumping three for four notches would startle me when it came.