In the year 1967, four female scientists make a breakthrough with time travel and before too long, travelling through time becomes commonplace in everyday society. But when Barbara, one of the pioneers suffers a breakdown, she's ousted from the Conclave and left alone for the rest of her life. Now in her eighties, Barbara, with the help of her granddaughter Ruby, is determined to return to life's work again.

This was really nicely paced and well-written book and I felt really connected to the story, the characters and I wanted to know what was going on. I love that all the characters we follow in this book are female, and all strong and bright in their own ways and the introduction of a murder mystery with a time travel element was so intriguing.

The way Kate Mascarenhas created her ideal time travelling world from the rules and regulations, to the science, the hygiene, the paradoxes - it was just splendid and it genuinely felt very real and not far-fetched.

I also appreciated the inclusion of a female-female relationship at the forefront of the story, as well as the inclusion of some non-white characters like Lucille tough she certainly took a back seat and i feel likeLucille deserves a spin-off story just for her.

I really enjoyed this book and I liked how it all wrapped up. I feel like maybe I wanted a bit more for Barbara as I feel like through the entirety of the book, she was always short-changed.