Books in the Bloodlines: Of Noble Blood series

Alex and Maggie Tinsdill travel to England and reunite a client with his long-lost noble family, the Glendons. When Alex and Maggie reunite the family, they soon discover that not everyone is happy with the news, especially Lady Glendon,  and her spoiled son who has just lost his heir to the Glendon family title. Maggie makes contact with the spirit of a young girl who tries to warn her that their lives are in danger, but will Maggie heed the warning in time?