Really interesting haunted house novel, set in the 1970s in
London, about a composer, his wife, and their young daughter, who move to a stately home
in Hampstead Heath where they start to hear mysterious voices. The wife hears them through the baby monitor, he picks up voices through his recording equipment. This starts them on a mysterious journey of finding out who may have lived in the house and where the voices came from.
It's hard to say anything else without spoiling the mystery, so I'm not going to. Quite suspenseful
and chilling, and extremely atmospheric. Surprising and haunting.