The Listerdale Mystery: 
Twelve tantalizing cases... the curious disappearance of Lord Listerdale; a newlywed's fear of her ex-fiancé; a strange encounter on a train; a domestic murder investigation; a wild man's sudden personality change; a retired inspector's hunt for a murderess; a woman's impersonation of a duchess; a necklace hidden in a basket of cherries; a mystery writer's arrest for murder; an astonishing marriage proposal; a soprano's hatred for a baritone; and the case of the Rajah's
emerald.
 
One Two Buckle My Shoe:
Even the great detective Hercule Poirot harboured a deep and abiding fear of the dentist, so it was with some trepidation that he arrived at the celebrated Dr Morley's surgery for a dental examination.
But what neither of them knew was that only hours later Poirot would be back to examine the dentist, found dead in his
own surgery.
Turning to the other patients for answers, Poirot finds other, darker questions...