I received an advanced copy of this book from the publisher via NetGalley

This book follows 2 story lines, one in the present, the other in the 1800's.

In the present, Caroline is in London, alone, on what was to be an anniversary trip with her husband. In the span of a few days, she find a mysterious vial and sets out to discover it's origins. Along the way, she does some soul searching and learns about who she is and what direction she wants her life to lead.

The past story is about Nella, who runs an hidden apothecary for women. The end result of some of her potions result in the death of men. The more we learn about Nella, we uncover her reasons for hiding her shop and the motivations behind the potions she creates.

This page-turner deftly weaves back and forth from past to present, keeping the reader invested in the lives of the main characters I really enjoyed the parallel connections that weave through both their lives and how they each react to them, in response to the culture of the time period they are living in.