Poirot had returned the wrong letter. Cornworthy lured Farley to the window of his room by a distraction and then shot him by leaning out of his own window, unseen by anyone due to the blank wall. He left the man dead for a short while and then went to "find" the body, planting the revolver there. His co-conspirator was his lover, Mrs Farley, who was the only other person who claimed that the dreams were real and that the revolver was kept in the desk drawer. She gives the game away by attempting to attack Poirot in a fit of rage but is held back by Stillingfleet. Greenshaw's Folly Writer Raymond West, the nephew of Miss Marple, shows Horace Bindler, a literary critic, round the grounds of a local hall popularly known as "Greenshaw's Folly". It was built in the 1860s or 1870s by a man who had made an immense fortune but had little idea of architectural style, the house being a strange mish mash of buildings from around the world. Although strictly speaking they are trespassing, they are nevertheless welcomed by Miss Greenshaw, the elderly granddaughter of the man who built the house, when they come across her in her garden. She is a sharp, slightly shrewish woman who keeps her staff of two in order. They are Miss Cresswell, her companion, and Alfred, a young gardener who is constantly in dispute with Miss Cresswell. Miss Greenshaw takes advantage of the presence of the two visitors to ask them to witness the will she has just had drawn up. This leaves everything to Miss Cresswell in lieu of unpaid wages, as Miss Greenshaw is determined that nothing go to her last living relative, her nephew, the son of a roguish man called Harry Fletcher who ran away with one of her sisters. They sign the will in the library where Miss Greenshaw shows them the copious diaries of her grandfather and expresses a wish to have them edited and published, but says she has not the time to undertake such a task. The two visitors take their leave, slightly puzzled by a comment from Miss Greenshaw to the effect that she thought they were policemen when she saw them in her grounds… When discussing the visit later in the company of Miss Marple, Joan West and her niece, Louise Oxley, the latter offers to undertake the work