The Doings of Raffles Haw

According to Wikipedia: "The Doings of Raffles Haw (1891) is a novel by Scottish author Sir Arthur Conan Doyle. A mysterious millionaire, Raffles Haw, comes to reside in Tamfield in Staffordshire. Even before he arrives, people start gossiping about him. As his house is being constructed, people wonder at the number of workers, their speed, and the complete disregard for the amount of money spent. When Haw arrives, he acquaints himself with the McIntyre family, which consists of Robert, his sister Laura, and their father. McIntyre senior had been a prosperous gun merchant, but has gone bankrupt and lost his sanity. Laura is engaged to Hector, the son of the vicar, Mr. Spurling. Hector is a sailor who is summoned for Naval duty at the beginning of the novel..."