<p>Ed Dukas was writing letters. Someone or something was also writing?unseen but at his elbow. It was perhaps fifteen minutes before he noticed. Conspicuous at the center of the next blank sheet of paper he reached for, part of a word was already inscribed: "Nippe ..." The writing was faint and wavering but in the same shade of blue ink as that in his own pen. Ed Dukas said "Hey?" to himself, mildly. The frown creases between his hazel eyes deep...