This is the second book of sleuthing couple Tommy and Tuppence, but this time they are put in charge of a detective agency. While solving cases that range from alibi verification to murder, they can be read almost as short stories and even the murder cases have a breezy feel to them as they are solved in two chapters.
While I wouldn't call this one a great Christie, I liked it. Some would point out that there isn't much build-up to the cases, but I'd say this is a good choice for just going along with T&T, a young, hip 1920's bantering couple.