"In 1883, the Lady Jenny Gallagher, age 23, died suddenly at her home of Deeprath Castle, deep in the Irish countryside. Though her death was ruled an accident, the precise circumstances are unknown. In 1992, Cillian Gallagher and his beautiful wife Lily were found dead within the castle walls. A suicide/murder? Or two murders? In 2015, Carragh Ryan is offered the job of taking an inventory of the vast library at Deeprath Castle. A great lover of books, Carragh can't resist the opportunity to gain access to the historic collection. But what she finds at the castle--and in its enigmatic heir, Aidan Gallagher--leads Carragh ever deeper into the heart of an ancient and sinister family secret"--