 And it is because these tales, brilliant and elusive as butterflies, hide, rather than reveal, the character of the man who wrote them, give but a suggestion of his tenderness and simplicity, of his iron will, of his splendour in the grip of war, that it is my duty to write these pages about him, now that he lies in the kind earth of France.  It is but to do what his choice of a pen-name makes me sure he himself would have done for a friend.