Anything You Say by Gillian McAllister. It's her third novel, and I plan to read them all in order. They are various murder mysteries. This one, a woman thinks she's being followed from a bar by a man who'd groped her, pushes the guy. Two different versions happen. One where she quickly calls 999 (the English version of our 911) and helps rescue the man, the other where she does nothing, walks away, and he dies. The rest of the novel is in alternating chapters, "Conceal" and "Reveal". So far fascinating.
The other is the most recent novel by Jack McDevitt, Village in the Sky which involves a faster than light star ship looking for habitable planets finds a village, one village only, on a planet somewhere in the Orion Nebula. When a follow-up ship goes there a couple of months later, the village is gone. Hmmm.
McDevitt has two incredibly good series, and this is the latest of the Alex Benedict series. The other, is The Academy series. Both are excellent, and not as well known as they should be. I have also met McDevitt twice, once at World Con in 2016, and again at Mile Hi Con in Denver in 2018. He's wonderful. I hope he lives forever and continues writing his books.