Where There's a Will, There's a Murder (A Residue Class mystery), by Gerald M. Weinberg
This book is the latest in a series of mysteries featuring a Mathematics professor and his genius protégés. The story is told by a particularly precocious protégé.
While the crew tries to locate the heir to a sizable estate, the likely heirs are murdered one by one. So in order to locate the heir, they must solve the murders and nab the culprit.
In writing this novel, Weinberg indulges in some mild satire, making the read all the more entertaining. So be alert when reading.
I’m eagerly awaiting the next book in this series.