@older I read The Mimicking of Known Successes a couple months ago and then passed it on to my wife. I enjoyed the noir feel and the novel take on humans resettling elsewhere in the solar system. As a nice bonus, the central but understated romance was perfect for my non-aro ace sensibilities.
You don't need to know someone living in a retirement village to love THE THURSDAY MURDER CLUB (Viking), but it helps. Only just started it, but it's one of the most enjoyable books I've read in ages - character driven, hilariously written, and for young readers who've grown beyond the MURDER MOST UNLADYLIKE series, a great step into adult crime fiction.