A Study in Saturation

When physiologist Dr. Wren Calloway finds Margaret Okafordead at the foot of her porch steps, she also finds something thatdoesn't belong: a stack of gold-labeled supplement tubs from acompany called Keel Vitality. Maggie was fifty-eight. She hadbeen getting stronger for ten months. Six weeks ago, her bonedensity scan came back with a number that made Wren hold very stillat her desk. Women like Maggie don't fall.

The creatinine in Maggie's post-mortem bloodwork will come backelevated, and Detective Eli Marsh will misread it - unless Wrencan make him understand what the number means, what it doesn't mean,and why the supplement company behind those gold tubs has buriedsomething in its certificate of analysis that is going to killsomeone else before the week is out.

Set in the fog-banked harbor town of Marrow Bay on the Oregoncoast, A Study in Saturation is a literary mystery builtaround the real science of creatine monohydrate - the most studiedsupplement in existence, a compound that builds muscle, protectsbone, and supports brain function across the female lifespan, andthat has been systematically undersupplied to women for decades.Wren knows the literature. She has lived it. Now someone hasweaponized the ignorance around it, and a woman she loved isdead.

Every study Wren cites in this novel exists. Every claim shemakes is sourced. A note on the science appears at the end of thebook for readers who want to take the research further.

For women who have been handed a number that didn't add upand told to go home.