Agatha Christie's Masterpieces - Detective Fiction

In the novel "By the Pricking of My Thumbs", an elderly aunt's rambling words in a nursing home about a child hidden behind a fireplace spark a chilling investigation for Tommy and Tuppence Beresford. When the aunt suddenly dies and her friend disappears, the sharp detective couple follows a trail of clues to a seemingly peaceful village, uncovering a dark secret and a series of long-forgotten murders.