I was told in elementary school that I only could read at half the speed for success in college. Oh well, one benefit of slow reading is you get to live with the characters a longer period of time. I read in a vain attempt to better understand people. At my other homes, I'm known as a spouse, pop, guy in the choir, physical chemist, computer/web dilettante and child-care provider. In theory, I'm a published author, if you consider stuff like Quenching Cross Sections for Electronic Energy Transfer Reactions Between Metastable Argon Atoms and Noble Gases and Small Molecules to count as publications. I've strewn dozens of such fascinating things to the winds.
This was the first of the Tommy and Tuppence books. It's pretty weak. It reads like a Hardy Boys book, full of adventure, danger, and oodles of implausibility. The characters do things rational people wouldn't do. I dunno, it was sort of cute in a way, but I expect something better plotted and written from Christie than I do from the pseudo Franklin W. Dixon. It probably deserves more than 2 stars, but it was so amateurishly done that I'm downgrading it.