Question: What series of young adult vampire-themed fantasy novels ninth volume was published on October 25, 2011?

Context articles: Suzanne Weyn
Andre Norton Award
Destined (Cast novel)
The Dark Heroine
List of HoneyComing light novels
Unbalance Unbalance
Twilight (novel series)
The Sorcerer's Ship
Jeff Sampson
House of Night

Suzanne Weyn (born July 7, 1955, Long Island, New York) is an American author.
 She primarily writes children's and young adult science fiction and fantasy novels. and has written over fifty novels and short stories.
 She is best known for "The Bar Code Tattoo", "The Bar Code Rebellion" and "The Bar Code Prophecy".
 "The Bar Code Tattoo" has been translated into German, and in 2007 was nominated for the Jugendliteraturpreis for youth literature given by the German government.
 It was a 2007 Nevada Library nominee for Young Adult literature and American Library Association 2005 Quick Pick for Reluctant Young Adult Readers.
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.
Destined is the ninth volume of the "House of Night" fantasy series written by P.C. Cast and Kristin Cast.
 The book was published on October 25, 2011 by St. Martin's Press, an extension of Macmillan Publishers.
The Dark Heroine is a series of vampire-themed fantasy romance novels written by English author Abigail Gibbs, published by HarperCollins in 2012.
 The first novel in the series, "Dinner with a Vampire," revolves around London-born Violet Lee, who is kidnapped and held hostage by a Royal Family of vampires known as the Varns.
 The series is told from both Violet Lee and Kaspar Varn's perspective, the latter being heir to the Vamperic Throne in the novel.
Two light novel series and one standalone publication have been published based on a Japanese adult visual novel called "HoneyComing", which was developed by Hooksoft.
 The first series was written by Jōji Kamio, and illustrated by two artists, Makako Matsumoto, and Rakko.
 The first volume was published on October 25, 2007, and the third and final volume was published on July 25, 2008.
 GoodsTrain released all volumes under their TwinTail Novels imprint.
 A second light novel series was published by Harvest, under their Harvest Novels imprint.
 Hack and Masamune Yotsuya both authored the books, while Makako Matsumoto and Rakko worked as the illustrators again, respectively.
 Three novels were published in the second series released between December 1, 2007, and March 2008.
 Lastly, a light novel titled "@HoneyComing RoyalSweet" was written by Renri Akatsuki, and illustrated by Makako Matsumoto.
 Eagle Publishing released a single volume on January 15, 2010, under their Pumpkin Novels imprint.
Unbalance Unbalance (Hangul: 언밸런스×2 ; RR: "Eonbaelleonseu×2 "; MR: "Ŏnbaellŏnsŭ×2 " ; lit.
 "Unbalance ×2") is a Korean manhwa series written by Dall-Young Lim and illustrated by Soo-Hyun Lee.
 The series focuses on Jin-Ho Myung, a high school senior, and his romantic relationship with his homeroom teacher, Hae-Young Nah.
 The manhwa began biweekly serialization in "Young Champ" magazine in May 2005, and the first volume was released on June 15, 2005 by Daewon C.I..
 The series had a long hiatus following the release of the ninth volume, and resumed serialization in "Young Champ" from October 2010 to October 2011.
 The tenth and final volume was released by Daewon C.I. on January 13, 2012.
 "Unbalance Unbalance" was licensed in North America by Infinity Studios, and released the first volume on January 11, 2007.
 A drama CD was released in Japan in September 2009.
Twilight is a series of four vampire-themed fantasy romance novels by American author Stephenie Meyer.
 Released annually from 2005 through 2008, the four books chart the later teen years of Isabella "Bella" Swan, a girl who moves to Forks, Washington, and falls in love with a 104-year-old vampire named Edward Cullen.
 The series is told primarily from Bella's point of view, with the epilogue of "Eclipse" and Part II of "Breaking Dawn" being told from the viewpoint of character Jacob Black, a werewolf.
 The unpublished "Midnight Sun" is a retelling of the first book, "Twilight", from Edward Cullen's point of view.
 The novella "The Short Second Life of Bree Tanner", which tells the story of a newborn vampire who appeared in "Eclipse", was published on June 5, 2010, as a hardcover book and on June 7 as a free online ebook. ""
, a definitive encyclopedic reference with nearly 100 full color illustrations, was released in bookstores on April 12, 2011.
The Sorcerer's Ship is a fantasy novel by Hannes Bok.
 It was first published in the December 1942 issue of the magazine "Unknown", and was first published in book form in paperback by Ballantine Books as the ninth volume of the Ballantine Adult Fantasy series in December 1969.
 The Ballantine edition includes an introduction by Lin Carter.
 The novel has also been published in translation in Polish and Russian.
 Like much of Bok's fiction, it is the story of a traveler "from our world who found [himself] in colourful, magic lands that are far more attractive than our own".
Jeff Sampson is a young adult and children's author.
 He was born on a U.S. military base in Nuremberg, Germany on July 15, 1982.
 He started writing professionally at age eighteen.
 His first books were packaged series fiction.
 When Sampson was twenty-two, he had his first novel published as part of the Dragonlance series of fantasy novels.
 He since went on to write many original young adult and children's series, including Monster Slayers under the pen name Lukas Ritter for Wizards of the Coast; Deviants for Balzer + Bray, an imprint of HarperCollins Children’s Books; and The Last Dogs under the pen name Christopher Holt for Little, Brown Books for Young Readers.
 Jeff Sampson currently lives in Seattle, Washington in the United States.
House of Night is a series of young adult vampire-themed fantasy novels by American author P. C. Cast and her daughter Kristin Cast.
 It follows the adventures of Zoey Redbird, a sixteen-year-old girl who has just become a "fledgling vampyre" and is required to attend the House of Night boarding school in Tulsa, Oklahoma.
 Books in the series have been on the "New York Times" Best Seller list for 63 weeks and have sold over seven million copies in North America, and more than ten million books worldwide, in 39 countries.
 The series, published by St Martin's Press, is planned to include thirteen books.