The Elusive Mrs. Pollifax is the third in Dorothy Gilman's mostly cozy/slightly goofy/fun IMO Mrs. Pollifax series. It has dropped to $1.99 at Kindle and Kobo US. Most of the titles in the series address fairly "generic", if sometimes now rather dated, issues - e.g. the Cold War, theft of nuclear material, etc. A few of the titles in the series take a specific view of various world political situations of the time, and depending on your view of those situations, you may or may not enjoy those. This one is a fairly standard Cold War background.
Kindle US:
https://www.amazon.com/dp/B00K4C4GYU
Kobo US:
https://www.kobo.com/us/en/ebook/elusive-mrs-pollifax