I love this dual timelines story. We have Eva and Precious-2 models working in England in 1939. We also have Madison (a relation somehow to Precious) in 2019-writing a story on Precious and her modeling days. Maddie also comes back in contact with a guy (Colin) she once dated.

What we get is a mystery. Precious is holding something back same Maddie is determined to give it what it is.

The 2 timelines are such seamless transitions they really helps the flow of the novel. I enjoyed both timelines. At some point, I figured out a bit of the mystery... Maybe not so early but before it's revealed. I liked getting to learn why this certain thing had to happen.
I probably loved the timeline in the WW2 era more but both are so good.