A World War 1 spy vs spy novel. Oh! And perhaps I should also mention, a bit of romance? "I am sorry,” he said coolly, "awfully sorry. As you know, I would have had things different. You may still doubt me when I say that what I have done is the hardest task that I ever undertook in my life. But that is true. You were the only person in England who jeopardized my existence there. I had to take you away. I regret the necessity of having to use force. I shall do what I can here upon the Sylp...