First published in 1930, ''The Case of Sir Adam Braid'' by Molly Thynne (d. 1950), public domain worldwide.
The Case of Sir Adam Braid tells of the murder of an ill-tempered old artist in his flat in the short window of time when his manservant was out of the building. Sir Adam had just written a venomous letter disinheriting the only relation who had any kind feelings for him, his granddaughter, Jill Braid. Various witnesses had come to the door of the flat and had heard Sir Adam talking, first to a man and then a woman. Jill Braid had visited her grandfather that evening, near to the time of his death, and things look bad for her. Fortunately Jill's father had been friends with Chief Detective Inspector Fenn of Scotland Yard and he believes in her innocence. Fenn's friend, Dr Gilroy, who lives in the same building as Sir Adam Braid, accuses Fenn of being unduly prejudiced in Jill's favour, until he meets her and realises that she is a honest and delightful young woman, after this he devotes himself to helping to prove her innocence.--The Golden Age, Molly Thynne (1881-1950) by Carol Westron
