Agent Zigzag

In the midst of a war, this man manages to date while having both Germany and Britain fund his three girlfriends, continues to party like it's his last day (again, on the dime of two opposing nations), then seamlessly returns to a successful criminal life—avoiding prosecution under the guise of his “wartime secret service.”

I want to dislike him, but my God, it's hard not to be weirdly impressed.

IMO this book went a little heavy-handed with Ben Macintyre's pro-British leaning.