By the Pricking of My Thumbs

Volume 69 in the Agatha Christie Collection (1968). Limited Edition of 1000 copies world-wide. When Tommy & Tuppence, older, but still with an unquenchable thirst for adventure and justice, visit an elderly aunt in her gothic nursing home, they think nothing of her mistrust of the doctors: after all she is elderly and has always been a difficult woman. But when Mrs Lockett mentioned a poisoned mushroom stew and Mrs Lancaster talked about 'something behind the fireplace', Tommy and Tuppence realise there could be more to the old lady's words than they originally thought -- and find themselves caught up in an unexpected adventure...