History Fanfic / HarryPotterAndTheBoilingIsles

* SavingTheVillain: Harry actually stops Lilith from killing Vitimir. He says its because killing a Head Witch is bound to have consequences, but his POV makes it clear that murder doesn't right with him.

* SecretTestOfCharacter: Belos kept quiet about Lilith being pregnant, but kept quiet and continued sending her on dangerous missions to test her loyalty. She ultimately proved it in his eyes by not keeping the baby.

* KnewItAllAlong: It is revealed that Belos knew about Lilith's pregnancy all this time, and kept quiet because he wanted to see how loyal she was to his cause.

** In "Writers' Block And A Fetch Quest" [[spoiler: Eda is restored to normal, though on limited time. Lilith finds out about how Voldemort gave Harry his scar, as well as appearing to sense a "darkness beyond darkness" inside it, clearly referring to the Horcrux. Deciding that she wants it out of Harry, Lilith tells Belos about how her so survived the Killing Curse, putting Harry on the Emperor's radar]].

* MamaBear: Lilith, for all her failings, ''is'' clearly protective of her son. When Darius makes some very thinly veiled comments about Harry's safety, thinking he's threatening her child, it enrages Lilith so much that she casually throws aside a wooden table against a wall with such force that it turns to '''''splinters''''', immediately thereafter promising Darius that if he as much as looks in Harry's direction she will make sure reduce him to a stain.

** Darius and Eberwolf show up in the equivalent of "Hooty's Moving Hassle", where in canon their first appearance was over a season later in "Eda's Requiem".

** Hunter first appears in the equivalent of "Sense and Insensitivity", half a season before his silent cameos in the Season 1 finale episodes, and first proper appearance in "Separate Tides".

** Dell crosses paths with the kids in the equivalent of "Escape of the Palisman", a full season before his first flashback appearance in "Knock, Knock, Knockin' on Hooty's Door" and first present-day appearance in "Elsewhere and Elsewhen".

* YouKnowTheOne: The two human wizards who visited the Boiling Isles are only referred to by the Bat Queen as "Cat's brilliant boys", of course leading to the question of who this "Cat" is.

* ExactWords: The House Elf Oath to serve their family says that they must do do as long as they "walk this Earth", but as Ron points out, the Boiling Isles don't exactly count as ‘this Earth’. He then proves that he's free of the binding by rearranging King's "minions", since he wouldn't be capable of following the orders of someone not in the family he's bound to if he was still under the oath, allowing them to free him ''before'' Harry attends Hogwarts, whereupon he takes up the janitoral position at Hexside.

** "The Wraith" follows up on the above, revealing that the maze actually contains [[spoiler: an ''army'' of Dementors'']]. But on the bright side, Luz discovers the plant glyph ahead of canon, Harry activates inherited Beast Keeping magic, and Ron masters the basics of Abomination magic he's been studying in secret.

** When Darius, Ron, Harry, and Eberwolf encounter a [[spoiler: Dementor]] in the maze, Eberwolf suggests that the being sounds like a legend of a "Wraith", beings that attacked the Isles centuries ago until "beasts of light" banished them, but Darius is skeptical until Ron notes that the aforementioned beasts sound like the entity's guarding the door to the maze.

* AdaptationOriginConnection: The Choosey Hat is revealed to have been bought to Hexside by former Principal Faust.

* ForWantOfANail:
** Instead of a warped Otabin created by Edric and Emira vandalizing his book, the threat in "The Wailing Star" is the version of Death from the Beedle book, which Luz summons to deal with all the fictional ghosts accidentally summoned by Harry's attempt to use the Resurrection Stone.
** Luz discovers the plant glyph in Chapter 20, which takes place shortly after "Once Upon a Swap", whereas in canon she didn't learn it until the events of "Enchanting Grom Fight".

** When Darius, Ron, Harry, and Eberwolf encounter a Dementor in the maze, Eberwolf suggests that the being sounds like a legend of a "Wraith", beings that attacked the Isles centuries ago until "beasts of light" banished them, but Darius is skeptical until Ron notes that the aforementioned beasts sound like the entity's guarding the door to the maze.

** On the flip side a few minutes later, when Luz suggests that a "magical letter-goblin" is stealing Ron's letters to Harry, Eda and King are both rather skeptical about the idea despite (as the narration reminds us) being a cursed witch and tiny demon, respectively, who are both from a dimension of magic and horrors. Hilariously, in a way, '''''she's exactly right'''''.

* MyHovercraftIsFullOfEels: It takes awhile for Harry to get a handle on Beast-tongue (somehow giving a ClusterFBomb while trying to ask about the weather), while Ron's efforts at Spanish are likewise gibberish.

** About the one thing that readily available Wizard Magic can do Boiling Isles Magic can't is reliable teleportation magic.

* BerserkButton: Darius is able to shrug off most of Eda's playful insults, but is infuriated when she says he dresses funny.