"In the world of logic, it's always our assumptions that lead us astray."
A spooky old house, rumors of a hidden Civil War treasure, a neighbor’s murder, and an ex-fiancé falling unconscious at her feet—Charlotte Ross has her hands full when she’s invited to stay at her friend, Jane Marshall’s home while her apartment is being renovated.

Jane and her new fiancé have sold everything to move to the large estate she’d just inherited near the small town in Illinois, where she grew up. She’s always loved the house, but the cost of living in, and fixing up, a deteriorating old mansion is more than both their incomes combined. If she can’t come up with the money for the next property tax payment, she’ll be forced to give it up.

Charlotte is intent on winning back her ex, but her efforts are stymied when he’s suspected of murder.

The two couples soon discover the rambling old house holds more than one secret when they join forces to find the real killer—and the elusive, Tarkington treasure.