Throne of Glass is a young adult high fantasy novel series by American author Sarah J. Maas, beginning with the inaugural entry of the same name.
 The story follows the journey of Celaena Sardothien, a teenage assassin in a corrupted kingdom with a tyrannical ruler.
 As the tale progresses, Celaena forms unexpected bonds and uncovers a conspiracy amidst her adventures.
The King of Elfland's Daughter is a 1924 fantasy novel by British writer Lord Dunsany.
 It is widely recognized as one of the most influential and acclaimed works in all of fantasy literature.
 Although the novel faded into relative obscurity following its initial release, it found new longevity and wider critical acclaim when a paperback edition was released in 1969 as the second volume of the "Ballantine Adult Fantasy series".
 It has also been included in a more recent series of books reprinting the best of modern fantasy, the Fantasy Masterworks series.
 While seen as highly influential upon the genre as a whole, the novel was particularly formative in the (later-named) subgenres of fairytale fantasy and high fantasy.
The Well at the World's End is a high fantasy novel by the British artist, poet, and author William Morris.
 It was first published in 1896 and has been reprinted a number of times since, most notably in two parts as the 20th and 21st volumes of the Ballantine Adult Fantasy series, in August and September 1970.
Sarah Janet Maas (born 5 March 1986) is a "New York Times" and "USA Today" bestselling American fantasy author.
 Her debut novel, "Throne of Glass", was published in 2012 by Bloomsbury.
Un Lun Dun is a young adult fantasy novel by China Miéville, released in 2007.
 The title is derived from 'UnLondon,' the name of the alternate realm where the book is set.
 It also contains illustrations by Miéville.
 It was first released as a hardback in the United Kingdom in January 2007 by Macmillan Publishers, then in the United States on 13 February 2007 by Del Rey Books.
 The novel also won the 2008 Locus Award for Best Young Adult Book.
Red Queen is a young adult fantasy novel written by American writer Victoria Aveyard.
 It was her first series and her first novel.
 It was published in February 2015.
 Its sequels are "Glass Sword" and "King's Cage".
 Red Queen won the 2015 Goodreads Choice Award for Debut Goodreads Author and was nominated for the 2015 Goodreads Choice Award for Young Adult Fantasy & Science Fiction.
The Andre Norton Award for Young Adult Science Fiction and Fantasy is an annual award presented by the Science Fiction and Fantasy Writers of America (SFWA) to the author of the best young adult or middle grade science fiction or fantasy book published in the United States in the preceding year.
 It is named to honor prolific science fiction and fantasy author Andre Norton (1912–2005), and it was established by then SFWA president Catherine Asaro and the SFWA Young Adult Fiction committee and announced on February 20, 2005.
 Any published young adult or middle grade science fiction or fantasy novel is eligible for the prize, including graphic novels.
 There is no limit on word count.
 The award is presented along with the Nebula Awards and follows the same rules for nominations and voting; as the awards are separate, works may be simultaneously nominated for both the Andre Norton award and a Nebula Award.
The Lord of the Rings is an epic high fantasy novel written by English author and scholar J. R. R. Tolkien.
 The story began as a sequel to Tolkien's 1937 fantasy novel "The Hobbit", but eventually developed into a much larger work.
 Written in stages between 1937 and 1949, "The Lord of the Rings" is one of the best-selling novels ever written, with over 150 million copies sold.
Young adult fiction or young adult literature (YA) is fiction published for readers in their youth.
 The age range for young adult fiction is subjective.
 Some sources claim it ranges from ages 12–18, while authors and readers of "young teen novels" often define it as written for those aged 15 to the early 20s.
 The terms young adult novel, juvenile novel, teenage fiction, young adult book, etc., refer to the works in this category.
Archer's Goon is a 1984 fantasy novel by Diana Wynne Jones both for the young adult and adult markets.
 It was nominated for the 1985 World Fantasy Award for Best Novel and is listed as an ALA Notable Children's Book, an ALA Best Book for Young Adults, and a Boston Globe-Horn Book Award Honor Book.

Question: Who published a young adult high fantasy novel by Sarah J. Mass?
Answer: Bloomsbury