<p>John Scott and Philip Lannes walked together down a great boulevard of Paris. The young American's heart was filled with grief and anger. The Frenchman felt the same grief, but mingled with it was a fierce, burning passion, so deep and bitter that it took a much stronger word than anger to describe it.<br>Both had heard that morning the mutter of cannon on the horizon, and they knew the German conquerors were advancing. They were always a...