Anthony Hope 
The Prisoner of Zenda [EPUB ebook] 

The Prisoner of Zenda is an 1894 adventure novel by
Anthony Hope , in which the King of Ruritania is drugged on the eve of his coronation and thus is unable to attend the ceremony. Political forces within the realm are such that, in order for the king to retain the crown, his coronation must proceed. Fortuitously, an English gentleman on holiday in Ruritania who resembles the monarch is persuaded to act as his political decoy in an effort to save the unstable political situation of the interregnum.
Sir
Anthony Hope Hawkins (9 February 1863 – 8 July 1933), better known as Anthony Hope, was a British novelist and playwright. He was a prolific writer, especially of adventure novels but he is remembered predominantly for only two books: The Prisoner of Zenda (1894) and its sequel Rupert of Hentzau (1898). These works, 'minor classics’ of English literature, are set in the contemporaneous fictional country of Ruritania and spawned the genre known as Ruritanian romance, books set in fictional European locales similar to the novels. Zenda has inspired many adaptations, most notably the 1937 Hollywood movie of the same name and the 1952 version.