History Fanfic / TheAmazingSpiderLuzInAcrossTheOwlVerse

* MergedReality: Everyone's theory on the Day of Unity seems to be that it means merging the Human Realm and the Demon Realm.

* HeroOfAnotherStory: Comes up more than a few times. Several of Earth's superheroes are noted to be absent at times due to dealing with other crises that came up. Doctor Strange in particular has a tendency to note several other crises he's had to deal with, which each double as a ShoutOut to a different fictional work.

* TheReveal: Chapter 21 indicates that [[spoiler: Azura used to be a student of the Ancient One and Kamar-Taj many years ago, which explains how she knows so much about magic from the Human Realm]].

** It's implied that Grometheus, or at least similar beings, were used by the Archivists against the Titans, given the carvings on the wall of its prison.

* SpottingTheThread: [[spoiler:Luz, Amity and Camila all realize that the ''Good Witch Azura'' books might be more than they seem when they realize that the books don't have any mention of any author or barcodes, nor do they have any memory of ''how'' they procure them outside of some vague memories of buying them at a bookstore. Doctor Strange confirms their suspicions when he looks at the context of the books and notices mention of Kamar-Taj, Vishanti and the Sorcerer Supreme in them, among other things.]]

* GodGuise: [[spoiler:The voice that communes with both Belos and the Titan Trappers claims to be the Boiling Isles Titan himself, but there's enough evidence in the story to indicate that it's lying. Besides the fact that it needs both groups to find the Birthing tower of the last Titan child instead of just telling them where it is, there's also the battles with Ingrimaxus; Belos explicitly notes that the magic gifted to him by the Titan was outright useless against the dragon last time it showed up, and it's why he doesn't even bother fighting against it himself when it returns in the present day. When Luz uses her own Titan Glyph magic against it, however, the magic proves to be ''extremely'' effective in halting the dragon in its tracks, and a Fire Glyph drawn on Ingrimaxus' head is what ultimately kills the beast for good. While the entity's identity is currently unknown, it's all but certain that it is ''not'' the Boiling Isles Titan.]]
* HeroOfAnotherStory: Comes up more than a few times. Several of Earth's superheroes are noted to be absent at times due to dealing with other crises that came up.

* NamedByTheAdaptation: The basilisk which attacks Hexside in "[[Recap/TheOwlHouseS1E13TheFirstDay The First Day]]" is named Zero, though Luz starts calling her "Zee" to match Vee.

* OOCIsSeriousBusiness: [[spoiler:When Lilith comes to the Owl House to ask for Luz's help against Ingrimaxus, Eda denies her, on account of it being her house and it's on {{Lockdown}}. When she tries to say this a second time, Hooty calmly interjects that it's '''his''' house.]]

* AlphaBitch: On her first day at Gravesfield High, Vee has the displeasure of meeting head cheerleader Chasity Masterson, who quickly takes a disliking to her for not meeting her qualifications for being "normal". According to Masha, her attitude mostly stems from how her family has been coasting by on the wealth from a factory they used to own a hundred years ago.

* ContrivedCoincidence: Lampshaded by Vee when she meets Masha and upon learning of their powers, realizes that they're likely the unknown hero who arrives in the Demon Realm with her and Camilla according to Luz's Oracle vision. She questions what the odds of that happening are, then realizes that with everything that's happened since Luz came to the Boiling Isles, it's actually pretty likely.

* AdaptationalIntelligence: Downplayed. While Luz was far from unintelligent in canon, she could be somewhat naïve, headstrong, and willing to jump into situations without thinking. While she retains shades of such characterization in this story, Luz repeatedly surprises a number of characters for being wiser than they expect, and is much more willing to acknowledge her own limitations and think things through as opposed to just blindly rushing into situations. One prominent example is when she chooses to simply sign up for two magic courses in Hexside as opposed to all of them like she did in canon, acknowledging that while she would like to study as much magic as possible, it would be better to limit her focus to avoid overtaxing herself with schoolwork. The arrival of Ingrimaxus only highlights the difference; while in canon, Luz would almost certainly throw herself into the fray with the eager intent of fighting a dragon, in this story, she acknowledges that she would be out of her depth by blindly taking on Ingrimaxus without a plan and initially intends to simply focus on protecting and rescuing civilians, before being stopped from doing so by Eda locking down the house. She only fights Ingrimaxus directly because Lilith specifically asked for her help in doing so, following her plan to the letter once it's explained.

* AdaptationalRelationshipOverhaul: Canonically, Lilith and Hunter are never even shown interacting onscreen, and she speaks negatively of their offscreen time in the Emperor's Coven together. Here, she takes on a mentorship role to him within the Coven.

** Odalia is a downplayed version of this. She is much more accepting of Amity's friendship with Luz and even encourages Amity to learn new magic outside the bounds of the Coven system. However, her motivations are still selfish in nature, with her being accepting of Luz primarily because of her connections with Earth's superheroes and figuring out ways that connection could benefit her.

* EveryoneCanSeeIt: The mutual crush that Luz and Amity are developing on each other is fairly obvious to others around them.

** Grom displays actually intelligence instead of just being a seemingly mindless creature reacting to the fears of those who face it.