Vivian Crewe spent thirty-five years learning how objects tell the truth. This summer, the object is a borrowed word.
When a niece clearing her late aunt's garage finds a finished, unpublished novel - and a note in a stranger's hand, returning it eight years too late - the Calder College Mystery Society is asked to settle a small, private matter. What Vivian finds is considerably larger.
The manuscript is undeniably real. So is the discovery buried inside it: a forgotten nineteenth-century naturalist, painstakingly recovered by a novelist nobody remembers. And so, unmistakably, is the fact that the very same discovery made someone else famous, three years before this book ever left a drawer.
Someone borrowed more than a manuscript.
As Vivian's specialists trace paper, ink, print history, and a stranger's confirmed hand across a friendship three decades old, a quiet correction turns into a reckoning nobody living wants to face - and a question the law was never built to answer: what do you owe a woman who can no longer speak for herself?
A Borrowed Discovery is the third novel in The Calder College Mystery Society series.