House of Shadows — Iris Gower

The Second World War is over. Artist Riana Evans falls in love with a dilapidated mansion in Wales, despite its rumoured ghosts, and is delighted when its elderly, eccentric owner sells it to her for a pittance. The ‘ghosts' prove good for business--inspiring her paintings in an almost supernatural way and providing welcome atmosphere at a series of profitable ghost-spotting weekends. But it soon becomes clear that there's someone--or something--who'll do anything to make sure Riana never discovers the secrets the house hides . . .