The Shivering Sands

In 19th-century England Caroline Verlaine, a young widow, travels to the Coast of Kent in search of her sister who disappeared while investigating some nearby ruins.
She finds work at an old estate overlooking the shivering sands, powerful quicksands that have been known to swallow entire ships. Her employers are a strange, distrustful family, haunted by the past. Caroline nonetheless finds herself drawn to them and to the son, Napier Stacy, in particular. The further Caroline becomes involved with the family, the more she learns about their deadly secrets. Secrets that now threaten Caroline.