Fiona, Sue, and Daisy, three retired ladies who volunteer at the local charity shop, Dogs Need Nice Homes, can’t believe their favorite customer is dead. Eighty-six-year-old Sarah Brown was found murdered in her hallway by her delivery man, a domino clutched in her hand—with a name scratched on it. When another person is found dead with a domino in their hand, and with the police making no progress, the ladies will need to help unmask a serial killer. At least they have Fiona’s scruffy-haired terrier cross to assist them.

The young man with the shock of white-blond hair lay spread-eagled on the floor, surrounded by fallen books. His hand reached out to the scattered pages, as though he was trying to tell her something. But who is he? How did he come to be killed in Flora’s ordinary little bookshop? Flora finds out he was staying at the Priory Hotel, and when the gardener suddenly dies in its beautiful grounds only a few days later, she is certain that something untoward is happening in her quiet village by the sea. 

Published in January 1922, The Secret Adversary is the second detective fiction novel by British crime novelist Agatha Christie. The book introduces the characters of Tommy Beresford and Prudence Tuppence Cowley, two out-of-work 20-somethings in post-war London. The two agree to form The Young Adventurers, Ltd, hiring themselves out with the slogan no reasonable offer refused. They are quickly enlisted to solve the mysterious disappearance of a young woman who was entrusted with sensitive diplomatic documents amid the sinking of the RMS Lusitania.

When Brian Foley is charged with the murder of his next-door neighbour, the fastidious Arthur Cranham, it seems the case against the blustering showman is cut and dried: prints, DNA, CCTV footage - there can't be any doubt. After all - Brian and Arthur have famously been at war for years. But Jack and Sarah are convinced that the police have it wrong. With time running out, can they prove Brian's innocence and find the real killer? Set in the sleepy English village of Cherringham, the detective series brings together an unlikely sleuthing duo: English web designer Sarah and American ex-cop Jack.

June Whitfield stars as Miss Marple in seven full-cast BBC Radio 4 dramatisations. The stories included are: 'The Moving Finger', 'They Do It with Mirrors', 'Nemesis', 'Sleeping Murder', 'Tape-Measure Murder', 'The Case of the Perfect Maid' and 'Sanctuary'.