Question: Phantom is the tenth book out of how many in the Sword of Truth series?
Context: Kim Harrison is a pen-name of American author Dawn Cook.  Under the name of Harrison, she is best known for her Rachel Morgan urban fantasy series set in an alternate history where a worldwide pandemic caused by genetically modified tomatoes led to the death of a large portion of the world's human population.  Under the name of Dawn Cook, she is best known for her Decoy Princess and Truth series, published in the first few years of the 21st century.  Harrison has received praise from fellow authors, and has reached the #1 spot on the "New York Times" Best Seller list. Severed Souls is Terry Goodkind's 17th novel.  It's the 14th in the Sword of Truth series and the third novel in Goodkind's new Richard and Kahlan series, which takes off right after the end of the original Sword of Truth series. Rinkitink in Oz: Wherein is Recorded the Perilous Quest of Prince Inga of Pingaree and King Rinkitink in the Magical Isles that Lie Beyond the Borderland of Oz.  is the tenth book in the Land of Oz series written by L. Frank Baum.  Published on June 20, 1916, with full-color and black-and-white illustrations by artist John R. Neill, it is significant that no one from Oz appears in the book until its climax; this is due to Baum's having originally written most of the book as an original fantasy novel over ten years earlier, in 1905.  Most of the action takes place on three islands – Pingaree, Regos, and Coregos – and within the Nome King's caverns.  Since the original ruler of the nomes, Roquat – who later renamed himself Ruggedo, was deposed in 1914's "Tik-Tok of Oz", Baum had to cleverly rework the tale to accommodate his successor, the well-intentioned – but politically motivated – Kaliko. Warheart is Terry Goodkind's eighteenth novel.  It's the 15th in the "The Sword of Truth" series and the fourth novel in Goodkind's new Richard and Kahlan series, which takes off right after the end of the original Sword of Truth series. Diary of a Wimpy Kid: Old School is a children's novel written by American author Jeff Kinney first published in 2015.  It is the tenth book of "Diary of a Wimpy Kid" series, preceded by "" and followed by "".  The book was released on November 3, 2015 worldwide, though an extract from the book was released online on October 28, 2015.  This book debuted at No.1 on bestseller charts in India. Phantom is the tenth book in Terry Goodkind's epic fantasy series "The Sword of Truth."  "Phantom" debuted in the #1 spot on "The New York Times" and "Publishers Weekly" bestseller lists, among others. The Enemy's Cosmetique (French: Cosmétique de l'ennemi ) is the tenth novel written by Belgian female author Amélie Nothomb.  It was also the tenth book published by Albin Michel.  It was first published in 2001. Tarzan and the Foreign Legion is a novel by American writer Edgar Rice Burroughs, the twenty-second in his series of books about the title character Tarzan.  The book, written June–September 1944 while Burroughs was living in Honolulu and published in 1947, was the last new work by Burroughs to be published during his life ("Llana of Gathol", the tenth book in the Barsoom series, was published in 1948, but it was a collection of four stories originally published in "Amazing Stories" in 1941).  The novel is set during World War II.  The term "foreign legion" does not refer to the French Foreign Legion, but is the name given in the book to a small international force (including Tarzan) fighting the Japanese. The Sword of Truth is a series of nineteen epic fantasy novels written by Terry Goodkind.  The books follow the protagonists Richard Rahl, Kahlan Amnell and Zeddicus Zu'l Zorander on their quest to defeat oppressors who seek to control the world and those who wish to unleash evil upon the world of the living.  While each novel was written to stand alone, except for the final three that were intended to be a trilogy, they follow a common timeline and are linked by ongoing events that occur throughout the series. Every Dog Has His Day is the tenth book in the "Hank the Cowdog" book series, a series of humorous children's mystery novels, written by John R. Erickson and illustrated by Gerald L. Holmes.
Answer: nineteen