A Testament to Murder — Vivian Conroy

In this historical mystery, a retired detective heads to the French Riviera where a dying billionaire plays a twisted game with nine would-be heirs.

At the lush Villa Calypso on the French Riviera, a dying billionaire launches a devious plan: at midnight each day he appoints a new heir to his vast fortune. If he dies within twenty-four hours, that person takes it all. If not, their chance is gone forever.

Yet these are no ordinary beneficiaries, these men who crossed him, women who deceived him, and distant relations intent on reclaiming the family fortune. All are determined to lend death a hand and outwit their rivals in pursuit of the prize.

As tensions mount with every passing second, retired Scotland Yard investigator Jasper must stay two steps ahead of every player if he hopes to prevent the billionaire's devious game from becoming a testament to murder . . .

Suspenseful from the first page to the last, A Testament to Murder is perfect for fans of And Then There Were None, Murder on the Orient Express, Crooked House, and Glass Onion.
Includes the first chapter from Honeymoon with Dead, the next book in the Murder Will Follow series.