I found this to be such an interesting take on time travel. It’s invented, but the byproduct of using it takes a psychological impact. Makes sense, right? But I actually had never thought about that aspect at all, previously.

Three women invent the technology (Helpfully, the furthest point back is when the tech was invented) but one has a mental breakdown and is subsequently jettisoned by the others to maintain confidence in their work and, well, product, essentially.

Some time later an unidentifiable dead body is found, and things get a lot more complicated. How can you find a killer that could be anyone and in any time, practically?

Structurally, the book jumps around a lot. Different times, different characters. Generations from the initial setup. It can be slightly overwhelming until you get your feet wet. But it is so rewarding to engage with it and the mystery as presented. The psychological aspects were just so interesting to me and I love a good mystery. Absolutely recommend it.