Ernest Bramah 
Secret of the League [PDF ebook] 
The Story of a Social War

This remarkably prescient dystopian novel was released in 1907, just before fascism began to gain traction in Europe. Author Ernest Bramah details a richly imagined alternate history in which the British Labour Party suddenly skyrockets in popularity and influence, leading to the establishment of an administration heavily influenced by the tenets of socialism — and bringing about a slew of unintended consequences.