I laughed and said:

"Well, Captain, I can take care of my own money."

He permitted the shadow of a smile to play around his mouth.

"You may be able to," he said, "but most of our agents cannot. We have this policy for two reasons: In the first place, it gives us a definite hold upon our men. Secondly, we have found that unless we save some money for our agents, they never save any for themselves. In the event of anything happening to an agent who leaves a family or other relatives, the money is handed over to them."

I later cursed that rule, for when I was captured in England there were 30,000 marks ($7,500) due me at the Wilhelmstrasse and I can whistle for it now.

Captain von Tappken looked at me inquiringly, but I hesitated. It was not on account of monetary causes, but for peculiarly private reasons--the dilemma of one of our house becoming a spy. The Captain, unaware of the personal equation that was obsessing me before giving my word, evidently thought that his financial inducements were not alluring enough.

"Of course," he continued, "this scale of pay is only the beginning. As your use to us and the importance of your missions increases, so will your remuneration. That depends entirely on you."

He raised his eyebrows inquiringly.

"Very well," I said. "I accept."

He held out his hand. "You made up your mind quickly."