Finished The Secret Adversary by Agatha Christie. This is the first novel in her Tommy and Tuppence series. Cousins and life long friends Tommy and Tuppence run into each other in London after World War I. Both are down on their luck. They devise a scheme to make money by offering their brains and legwork to anyone who might need it. And someone does. They are drawn into an international plot. They meet many people who are eager to help them, but whose loyalty is suspect. Their cleverness and quick thinking get them out of numerous scrapes and in almost losing each other, they realize their true feelings. This was a fun, quick, adventurous book.