"Zendan vanki" by Anthony Hope is an adventure novel published in 1894. When the King of Ruritania is drugged before his coronation, an English gentleman who remarkably resembles him is persuaded to impersonate the monarch. As political intrigue deepens and the real king is abducted, the impostor must maintain his dangerous deception while navigating treacherous plots, deadly henchmen, and an impossible love with Princess Flavia. Can he rescue the true king without revealing the charade? (This is an automatically generated summary.)
These books are free to read. Each is in the public domain in the United States; check your own country's rules before you copy or share one.