' At the Villa Rose' Summary

Inspector Hanaud, the well-known French detective, is on holiday in Aix les Bains when he is asked by a young Englishman, Harry Wethermill, to investigate the murder of a wealthy widow, Mme Dauvray.  Mme Dauvray has been strangled and her valuable jewels, which she wore ‘with too little prudence’, are missing. Her maid Hélène Vauquier has been discovered upstairs, unconscious, chloroformed, and with her hands tied behind her back.  Suspicion immediately falls on Mme Dauvray’s young English companion, Celia Harland, who has vanished. Celia is in love with Wethermill, and the latter pleads with Hanaud to take on the case in the unshakeable conviction that in spite of appearances Celia is innocent of the crime. Hanaud agrees to do so.

Mme Dauvray had been fascinated by spiritualism and part of Celia’s role as companion had been to stage séances for her and, as a supposed medium, to conjure up manifestations from the spirit world - which she did by acting and trickery. Hanaud discovers that she was to have conducted a séance on the night of the murder.

Adèle Tacé (who calls herself Mme Rossignol) is a practised criminal who has come to Aix specifically to steal Mme Dauvray’s jewels. In league with Hélène Vauquier, she professes disbelief in spiritualism and goads the old lady into holding a séance in which Celia will be expected to perform while bound hand and foot. To avoid being exposed as a fraud to Mme Dauvray and to her lover Harry, Celia agrees to co-operate, believing she can quite easily extricate herself. On the night, however, she is bound far more professionally and tightly than she had anticipated and, when unexpectedly secured to a pillar and gagged, realises that she is a prisoner. Seeing a man stealing in at the french window and recognising Harry Wethermill, Celia rejoices and expects release. But all he does is to check that her bonds are tight.  Celia is unable to escape or to cry out as he strangles Mme Dauvray.

Wethermill, Hélène and Adèle search without success for the jewels, and are forced to suspend their efforts when they hear footsteps outside. Hélène voluntarily allows herself to be chloroformed, to avoid suspicion falling on her. Celia, meanwhile, is abducted and taken to Geneva, being kept alive solely so that she can tell the gang where the jewels are hidden. When the newspapers report that the missing jewels have been found by the police, the gang have no further use for Celia and they prepare to drug her and dispose of her body in the lake. Hanauld arrives just in time.