History WhatHappenedToTheMouse / Literature

* In ''Literature/BrokenVeil'' the question of where [[spoiler:Mjolnir]] ends up after Dillon Maxwell is able to cast it away is never answered, which is particularly glaring because it was made into a big deal, only to be lost before the true climax. Dillon's claim that it's flown all the way to Monogolia could just be hyperbole.

** Ludo Bagman is forced to flee from goblins at the end of ''Goblet of Fire''. He is never seen or heard of again.
** Cornelius Fudge, the Minister of Magic for most of the series. His last official position is at the start of book 6, where he's been sacked as Minister, but is kept on as liaison between the Ministry and the Muggle Prime Minister. No word at all of him or how he reacted to Voldemort taking over the Ministry in Book 7.
** Sturgis Podmore, a member of the Order, is put under the Imperius curse by Death Eaters and is made to break into the Department of Mysteries. He is sentenced to Azkaban. Upon learning about this, nobody shows any concern for him or the fact that he's going to the [[Room101 most awful place on Earth]]. After he is presumably released, he is never mentioned again and is not even seen in the Order.
** It was never explained what was behind the veil [[spoiler:that Sirius fell through when dying in book 5,]] though as it is in the Department of Mysteries, it is likely that no-one knows. Even though in the movie [[spoiler:Sirius was dying as he fell]], in the book it's obvious that [[spoiler:the fall through the arch is what killed him]]. So, it's fairly clear what lies behind the arch, especially when you take into account what Harry heard from it. Luna's comments to Harry at the end of the book would seem to confirm this theory, but then again, [[{{Cloudcuckoolander}} consider the source]].

* ''Literature/RomanceOfTheThreeKingdoms'' raises numerous mouse questions, as might be expected of a semi-historical narrative with LoadsAndLoadsOfCharacters. To quote the book's 17th-century editor, "A beloved commander, a beloved son, lost for the sake of a woman... but what happened to lady Zou?"

* ''Literature/WarriorCats'' has LoadsAndLoadsOfCharacters (over 1000 by the fourth arc) but most are filler extras who sometimes don't even appear in the text. Many of these characters [[OneSteveLimit share names with other characters]] as well. As a result, genders get mixed up, designs change, ages change, and some cats just ''disappear'' without any mention. One early example would be with Mistlekit. Speckletail's deaf son Snowkit was taken by a hawk so that Speckletail could get sent into the Elder's den. But, whatever happened to her daughter Mistlekit? No one ever mentioned her having died.

* In the ''Toys/{{Bionicle}}'' book ''Challenge of the Hordika'', the titular group of heroes capture a rickety tower and convert it into their base ([[MerchandiseDriven to promote the concurrently released Lego playset of course]]). The following book, ''Web of Shadows'' was an adaptation of the film of the same name, and since it glossed over the event completely, the tower's fate was left unclear. Presumably, they abandoned it out of necessity between scenes. Years later, the author revealed online that the building still stood for over a 1000 years before being dismantled.

* In 'Clouds of Witness' by Dorothy L. Sayers, Wimsey visits Mr. Grimethorpe's farm at Grider's Hole, and meets Grimethorpe's daughter, 'a little girl of about seven, very dark and pretty'. The child is never mentioned again, and when Mrs. Grimethorpe leaves her abusive husband she apparently does not take her daughter with her.

* At the end of the ''Literature/{{Goosebumps}}'' book Night Of The Living Dummy II, [[KillerDoll Slappy]] is given a NoHoldsBarredBeatdown by Dennis (the protagonist's old dummy) which results in Slappy's head getting cracked open, and a large white worm-like creature crawling out of it, then escaping through a crack in the wall. Seeing as Slappy is the franchise's most iconic and recurring antagonist, it seems a bit odd that this was never explained nor brought up again. Also one of the rare literary examples of a GiantSpaceFleaFromNowhere.

* ''The Story of the Lost Child'', the final volume of ''Literature/TheNeapolitanNovels'', introduces [[spoiler: Doriana]], a young woman whom [[spoiler: Pietro]] hooks up with after he and [[spoiler: Elena]] split up. They live together for many years, without any reports of any sort of conflict between them, until one day we are suddenly informed their relationship is over, with him claiming that she turned out to be "an untrustworthy person, completely without ethics". We never find out what she did to deserve such strong condemnation.

* ''Literature/TheStormlightArchive'': In the novella ''Literature/{{Edgedancer}}'', one character's HeelRealization is spurred by a pack of Parshmen whom the Everstorm transforms into the deadly Voidbringers, proving to him that the Desolation he's been denying has, indeed, arrived. He leaves, filled with guilt, and the story jumps into the final chapter, never mentioning the Voidbringers again. Maybe the reformed villain killed them? Maybe they ran away? But why is nobody mentioning them?

** The letter Harry finds from his mother to Sirius Black mentions that the toddler Harry, riding on a toy broom Sirius gave him, is terrorizing the family cat. There's no hint of what happened to the cat when Harry's parents were killed and Harry was sent to live with his aunt.

** In ''Literature/DiaryOfAWimpyKidTheLastStraw'', Greg is seen spraying a cat with a squirt gun in a FlashBack to about two years ago. It is unknown who that cat is.