With the aid of her partner Dylan Tremayne, Lady Serafina Trent aims to help her neighbors-the Haydens-determine who the true heir is to their sizable estate. After some investigating, she shocks the Haydens when she reveals that the child they believed had died at birth is actually alive and living as a criminal in London's worst slum.Then the Hayden's butler is murdered and the stakes are dangerously raised. Lady Serafina must employ her famous scientific reasoning to help her discover answers before foul play strikes again-though her beloved reason fails to explain her growing attraction to Dylan . . .