Champagne Conspiracy

"Winter has come to the Montgomery Estate Vineyard in Atoka, Virginia. Lucie Montgomery and winemaker Quinn Santori have decided to make champagne ... But then Gino Tomassi, Quinn's [cousin], turns up on their doorstep one afternoon, demanding help in solving the mystery of what happened to Zara Tomassi, the first wife of his grandfather, who died in a San Francisco hotel in 1923 under suspicious circumstances. And it seems there's no coincidence that her death came the day after President Warren Harding passed away in that same hotel. Gino needs answers before his blackmailer takes him for all he's worth--or exposes an explosive family secret"--