"This House to Let" by William Le Queux is a mystery that starts with Constable Brown, a friendly policeman, walking his beat on Cathcart Square in London, where he notices an empty house with a "To Let" sign. The mystery deepens after Brown looks into a broken window at the property and finds a dead man inside, thought to have killed himself. Brown's investigation shows there was strange activity at the house, and the dead man might be connected to Reginald Davis, who was once thought to have committed murder. The story mixes mystery and social issues, hinting at hidden secrets in Davis's life and his sad death.

This House to Let
By William Le Queux
In a London square, an inquisitive constable uncovers a web of secrets and possible murder within the walls of an apparently empty, abandoned house.
Summary
About the AuthorWilliam Tufnell Le Queux was an Anglo-French journalist and writer. He was also a diplomat, a traveller, a flying buff who officiated at the first British air meeting at Doncaster in 1909, and a wireless pioneer who broadcast music from his own station long before radio was generally available; his claims regarding his own abilities and exploits, however, were usually exaggerated. His best-known works are the anti-French and anti-Russian invasion fantasy The Great War in England in 1897 (1894) and the anti-German invasion fantasy The Invasion of 1910 (1906), the latter becoming a bestseller.
William Tufnell Le Queux was an Anglo-French journalist and writer. He was also a diplomat, a traveller, a flying buff who officiated at the first British air meeting at Doncaster in 1909, and a wireless pioneer who broadcast music from his own station long before radio was generally available; his claims regarding his own abilities and exploits, however, were usually exaggerated. His best-known works are the anti-French and anti-Russian invasion fantasy The Great War in England in 1897 (1894) and the anti-German invasion fantasy The Invasion of 1910 (1906), the latter becoming a bestseller.