Question: Speaker for the Dead is a 1986 science fiction novel by Orson Scott Card and an indirect sequel to a novel that came out in which year ?

Context paragraphs:
Shadows in Flight: Shadows in Flight is a science fiction novel by Orson Scott Card.  When released in 2012, it became the tenth novel published in the "Ender's Game" series.  The story follows on from where the original four "Shadow series" books left off.  It is about Bean and his children discovering an ancient Formic "ark" during their journey in space.  A sample chapter was released on November 28, 2011.  The hardcover version was released on January 17, 2012, and the paperback was released on January 29, 2013.  It was nominated for the Goodreads Choice Award for science fiction.

Ender in Exile: Ender in Exile is a science fiction novel by Orson Scott Card, part of the "Ender's Game" series, published on November 11, 2008.  It takes place between the two award-winning novels: "Ender's Game" and "Speaker for the Dead".  It could also be considered a parallel novel to the first three sequels in the Shadow Saga, since the entirety of this "trilogy" takes place in the span of "Ender in Exile".  The novel concludes a dangling story line of the Shadow Saga, while it makes several references to events that take place during the Shadow Saga.  From yet another perspective, the novel expands (or "replaces") the last chapter of the original novel "Ender's Game".  On the one hand, it fills the gap right before the last chapter, and on the other hand, it fills the gap between the last chapter and the original (first) sequel (both named "Speaker for the Dead").  "Ender in Exile" begins one year after Ender has won the bugger war, and begins with the short story "Ender's Homecoming" from Card's webzine Intergalactic Medicine Show.  Other short stories that were published elsewhere are included as chapters of the novel.

Ender's Game: Ender's Game is a 1985 military science fiction novel by American author Orson Scott Card.  Set in Earth's future, the novel presents an imperiled mankind after two conflicts with the "buggers", an insectoid alien species.  In preparation for an anticipated third invasion, children, including the novel's protagonist, Ender Wiggin, are trained from a very young age through increasingly difficult games including some in zero gravity, where Ender's tactical genius is revealed.

Ender Wiggin: Andrew "Ender" Wiggin is a fictional character from Orson Scott Card's 1985 science fiction novel "Ender's Game" and its sequels ("Speaker for the Dead", "Xenocide", "Children of the Mind", "Ender in Exile"), as well as in the first part of the spin-off series, "Ender's Shadow".  The book series itself is an expansion, with some changes to detail, of Card's 1977 short story "Ender's Game."

Rasputin (Card novel): Rasputin is the title of an as-yet uncompleted science fiction novel by Orson Scott Card and Kathryn H. Kidd.  It will be the second novel in The Mayflower Trilogy.  It is currently listed as a work in progress on Card's website.  The first novel, "Lovelock", was published in 1994.

Speaker for the Dead: Speaker for the Dead is a 1986 science fiction novel by Orson Scott Card and an indirect sequel to the novel "Ender's Game".  The book takes place around the year 5270, some 3,000 years after the events in "Ender's Game".  However, because of relativistic space travel, Ender himself is only about 25 years older.

Orson Scott Card: Orson Scott Card (born August 24, 1951) is an American novelist, critic, public speaker, essayist, and columnist.  He writes in several genres but is known best for science fiction.  His novel "Ender's Game" (1985) and its sequel "Speaker for the Dead" (1986) both won Hugo and Nebula Awards, making Card the only author to win both science fiction's top U.S. prizes in consecutive years.  A feature film adaptation of "Ender's Game", which Card co-produced, was released in late October 2013 in Europe and on November 1, 2013, in North America.

Ender's Game (series): The Ender's Game" series (often referred to as the Ender" saga and also the Enderverse) is a series of science fiction books by Orson Scott Card.  The series started with the novelette "Ender's Game", which was later expanded into the novel of the same title.  It currently consists of fifteen novels, thirteen short stories, 47 comic issues, an audioplay, and a film.  The first two novels in the series, "Ender's Game" and "Speaker for the Dead", each won both the Hugo and Nebula Awards, and were among the most influential science fiction novels of the 1980s.

Wyrms (comics): Wyrms is a six-issue comic book mini-series by Orson Scott Card and Jake Black, based on the novel "Wyrms" by author Orson Scott Card.  Publication started in April 2006 by Dabel Brothers Productions and was finished in February 2008 by Marvel Comics.

List of Ender's Game series short stories: There are various sources for short stories set in the Ender's Game series.  One is the short story collection "First Meetings" by Orson Scott Card.  This collection contains the original novelette "Ender's Game" plus three other stories.  Another source is Card’s webzine "InterGalactic Medicine Show".  The first four stories from Card's webzine: "Mazer in Prison," "Pretty Boy," "Cheater," and "A Young Man with Prospects," also appear in the paperback anthology "Orson Scott Card's InterGalactic Medicine Show".  Reprints of short stories in the Ender's Game series can be found in other science fiction anthologies.

Supporting paragraphs: Speaker for the Dead Ender's Game
Answer: 1985