Women who are getting stronger do not fall down their own porch steps.
Margaret Okafor was fifty-eight years old, rebuilding bone, and six weeks out from a scan that made her physiologist go very still at her desk. On a wet Tuesday in October she is dead at the bottom of those steps, and Dr. Wren Calloway is the only person in the harbor town of Marrow Bay who knows the number on that scan was right, and that everything built on top of it was a lie.
What Wren finds on the porch does not belong there. A stack of gold-labeled supplement tubs from a company called Keel Vitality, sold quietly to half the women in her strength clinic. Sold to a friend. The creatinine in Maggie's post-mortem bloodwork will come back elevated, and Detective Eli Marsh will misread it, because nearly every physician he calls will misread it too. That confusion is not an accident. Someone has been counting on it.
The science is real. The murder is fiction. The anger is both.
Wren runs her clinic out of a converted boathouse on a fog-banked stretch of coast, and she has spent her career on the one question the research world spent fifty years refusing to fund: what happens inside a woman's body, decade by decade, when creatine monohydrate is quietly undersupplied to her for her entire adult life. Through perimenopause. Through menopause. Through every hormonal transition medicine has historically waved off with a shrug and a prescription pad. She knows the literature because she has lived it. Now a poisoner with a very good logo is selling directly into that ignorance.
Detective Marsh has a body, a supplement company with a certificate of analysis that will not survive a serious look, and a witness who keeps being right before the evidence arrives. He has forty-eight hours. Wren has a dead friend, a notebook full of data, and nothing left to lose.
A medical mystery for readers who want a woman at the center of it who actually knows things. A small-town murder novel with a female scientist, a detective willing to stay in the room, and a suspense plot built on real clinical evidence instead of hand-waving. For women over 50 who have been handed a number that did not add up and told to go home. For anyone who has ever suspected the label was doing more work than the product.
Set in a small coastal town where everyone knows the tide table and nobody asks what is in the jar, this is a mystery novel with a working knowledge of physiology and a women's fiction novel with a body in it. Two readers will find it here: the one who came for the murder and stayed for the science, and the one who came for the science and did not expect to be up reading at two in the morning.
Every study Wren cites in this novel exists. Every claim she makes is sourced. A plain-language note on the science appears at the back of the book for readers who want to take the research further.
A Study in Saturation is Book One of the Marrow Bay Mysteries. Wren Calloway and Eli Marsh will return.
