Title: Enter the Saint
Content:  Man Who Was Clever", the Saint is described by another character as being South African as a ruse. The Saint's nationality is never made explicit, though he is fairly obviously English (on screen he has usually been played by British actors, although he has also been portrayed by actors from South Africa, France, Australia and the United States). Following Enter the Saint, Charteris wrote two full-length novels featuring Templar before returning to the novella form in Featuring the Saint in 1931. For the next 30 years Charteris would alternate between novel, novella, and short story formats; this would continue after other authors began writing the Saint series in the 1960s.
Title: Enter the Saint
Content:  of the United Kingdom, the first of what would be many international Saint adventures, although it wouldn't be until "The Wonderful War", a story in the Featuring the Saint collection, that a story would be completely set outside of the country. Enter the Saint is a collection of three interconnected adventure novellas by Leslie Charteris first published in the United Kingdom by Hodder and Stoughton in October 1930, followed by an American edition by The Crime Club in April 1931. This was the second book featuring the adventures of Charteris' Robin Hood-inspired anti-hero, Simon Templar, alias "The Saint". It followed the 1928 novel, Meet the Tiger which introduced the character. 
Title: Enter the Saint
Content:  the introduction to a 1983 republishing of Enter the Saint as part of an omnibus collection by Avenel Books, Charteris identifies the three stories in this collection as being the first stories written about Templar (not counting Meet the Tiger), although other sources such as the website Saint.org list Enter the Saint as the third Saint book after the novel The Last Hero (this, however, is not correct as The Last Hero makes direct reference to events in the Enter the Saint stories). The stories in Enter the Saint mark the first series appearance of Scotland Yard Inspector Claud Eustace Teal, a character that Charteris had introduced in the 1929 
Title: Enter the Saint
Content:  As with other Saint books, many different editions of Enter the Saint have been published over the years, although unlike many early Simon Templar collections, it appears to have never been published under any other title. Not all editions include all three stories. The 1983 Avenel omnibus includes only "The Man Who Was Clever" and "The Lawless Lady", while a 1960s edition by Fiction Publishing Company (an imprint of Doubleday) omits "The Man Who Was Clever"; both despite the fact that the three stories are interconnected. Charteris wrote introductions to both editions, suggesting that he was aware of (and therefore possibly approved or requested) the omissions.
Title: Enter the Saint
Content:  are perfunctory and it is left to the reader to assume that they have a longstanding relationship with the Saint. Several other members of "the Saints" are mentioned briefly, but would make their proper introductions in later books. The book includes an apparent continuity error. In two of the stories, it is stated that Patricia Holm is on a Mediterranean cruise (along with one of "The Saints", Norman Kent) during the events of "The Policeman With Wings" and "The Lawless Lady" (suggesting the two stories take place back-to-back), however in the former story Holm makes an appearance at the end and again appears at the beginning of the latter. In 
Title: Enter the Saint
Content:  "The Lawless Lady" was adapted as an episode of The Saint starring Roger Moore and first broadcast on 30 January 1964. The basic storyline of the episode, however, is substantially different from the original. This is the earliest Charteris story to be adapted for the TV series. Enter the Saint was also the title of a BBC Radio documentary on Simon Templar and Leslie Charteris, broadcast in 1998.
Title: The Saint (novel)
Content:  The Saint is a mystery novel by Burl Barer published by Pocket Books in 1997. It was based upon the screenplay for the film The Saint, which in turn was loosely based upon the character Simon Templar, created by Leslie Charteris. Val Kilmer portrayed Templar and is pictured on the book's front cover. This was the first book featuring Templar since Salvage for the Saint ended the original series of books (which began in 1928) in 1983. It is also the first Saint story to be published since Charteris' death in 1993 and the first to not be published by either Hodder & Stoughton (UK) or The Crime Club (US). Barer wrote the book based upon the screenplay by Jonathan Hensleigh and Wesley Strick. Barer himself 
Title: Enter the Saint
Content: "The Man Who Was Clever" - 4 May 1929 (as "The Five Kings") ; "The Policeman with Wings" - 24 August 1929 (as "The House on the Moors") ; "The Lawless Lady" - 19 October 1929 (as "Crooks Cargo") The three novellas were published in the magazine Thriller prior to being collected:
Title: Saint
Content: Gallick, Sarah (2014). 50 Saints Everyone Should Know. Wise Media Group. . E-book. 
Title: Enter the Saint
Content:  Daredevil. The three novellas in the book are: In "The Lawless Lady", Patricia Holm states that she and the Saint have been in love for a year, and "The Policeman with Wings" indicates that Templar is 28 years old, which means the events of these stories take place about a year after the events of Meet the Tiger. The three stories introduce a cast of supporting characters who make up Templar's team (referred to at one point in this book as "Saints"); only Patricia Holm and Templar's butler, Orace, had appeared in the previous book. The introductions of Roger Conway and Dicky Tremayne, the two operatives featured prominently in this 

Question: Who is the author of Enter the Saint?
Answer: Leslie Charteris.
Leslie Charles Bowyer-Yin.