History YMMV / TheTrialsOfApollo

* WinBackTheCrowd: Many Grover fans were complaining about his status as DemotedToExtra in ''Heroes of Olympus'', [[spoiler:but at the end of ''The Dark Prophecy'', he returns and becomes a major character in ''The Burning Maze''.]]

** [[spoiler: Jason and Piper's break up. Some fans welcomed it as a SurprisinglyRealisticOutcome, as it's common for couples to just stop going out when the magic fades even if there's nothing necessarily wrong with the relationship, others hated it as it felt it made much of their CharacterDevelopment in Heroes of Olympus feel pointless]].

* FanonDiscontinuity: Because of the controversial [[spoiler: death of Jason Grace and/or his and Piper's break up]] many fans like to pretend the series ended with Blood of Olympus. It's also not uncommon to see fanfics where the general events of Trials are more or less the same but [[spoiler: Jason alive and well and still together with Piper]].

** The fact that the seven go their separate ways has divided fans who see it as a disservice to their friendship while others point out that the seven were never that close to each other and that their relationship is closer in fanon than canon.

* UnintentionallyUnsympathetic: There are a number of fans who feel Piper's reasoning for [[spoiler:breaking up with Jason makes her unsympathetic. When explaining to Apollo why she broke up with Jason, she says it's because she felt that Hera and Aphrodite forced them together. However, neither goddess actually did so. Hera created the fake memories not only simply for Jason's momentary convenience (as she had to have known that the Mist memories she created wouldn't last), but for her long planned goal of uniting the Greeks and the Romans, not out of any interest in Piper and Jason's relationship which she never commented on and never involved herself in. On Aphrodite's end, her claiming Piper and it happening right after her relationship was revealed to be fake had nothing to do with each other and her encouraging her daughter's romance was simply that since Aphrodite had always been shown in the series to coo over relationships she finds cute. Not to mention the actual time Piper and Jason spent together after learning they were demigods (over a year) was much longer than the time they spent together in Piper's Mist-created memories (three months of knowing each other and a few weeks of dating).]]

** percy and annabeth's decision to stay out of the fight is a source of contention. While some believe they deserve a break other argue they are neglecting their responsibility to their friends. Also some view percy decision to help Magnus chase instead of apollo a little hypocritical

* AuthorsSavingThrow: In ''Literature/TheHeroesOfOlympus'', Riordan got criticized for having Frank Zhang lose all of his fatness and extra-weight through the Blessing of Mars, people seeing it was a wasted opportunity to have a plus-size hero and a borderline fatphobic move feeding into the idea that a chubby boy can't be a true warrior. In this series Frank regains the weight he had lost (while keeping his newfound muscles and height), and Riordan points out that Mars' Blessing was just a form of magical "growth spurt", as Frank's body needed time to settle back to his actual natural girth.

* AuthorsSavingThrow: In ''Literature/HeroesOfOlympus'', Riordan got criticized for having Frank Zhang lose all of his fatness and extra-weight through the Blessing of Mars, people seeing it was a wasted opportunity to have a plus-size hero and a borderline fatphobic move feeding into the idea that a chubby boy can't be a true warrior. In this series Frank regains the weight he had lost (while keeping his newfound muscles and height), and Riordan points out that Mars' Blessing was just a form of magical "growth spurt", as Frank's body needed time to settle back to his actual natural girth.

* UnintentionallyUnsympathetic: There are a number of fans who feel Piper regarding her reasoning for [[spoiler:breaking up with Jason makes her unsympathetic. When explaining to Apollo why she broke up with Jason, she says it's because she felt that Hera and Aphrodite forced them together. However, neither goddess actually did so. Hera created the fake memories not only simply for Jason's momentary convenience (as she had to have known that the Mist memories she created wouldn't last), but for her long planned goal of uniting the Greeks and the Romans, not out of any interest in Piper and Jason's relationship which she never commented on and never involved herself in. On Aphrodite's end, her claiming Piper and it happening right after her relationship was revealed to be fake had nothing to do with each other and her encouraging her daughter's romance was simply that since Aphrodite had always been shown in the series to coo over relationships she finds cute. Not to mention the actual time Piper and Jason spent together after learning they were demigods (over a year) was much longer than the time they spent together in Piper's Mist-created memories (three months of knowing each other and a few weeks of dating).]]

* UnintentionallyUnsympathetic: There are a number of fans who feel Piper regarding her reasoning for [[spoiler:breaking up with Jason makes her unsympathetic. When explaining to Apollo why she broke up with Jason, she says it's because she felt that Hera and Aphrodite forced them together. However, neither goddess was actually involved. Hera created the fake memories not only simply for Jason's momentary convenience (as she had to have known that the Mist memories she created wouldn't last), but for her long planned goal of uniting the Greeks and the Romans, not out of any interest in Piper and Jason's relationship which she never commented on and never involved herself in. On Aphrodite's end, her claiming Piper and it happening right after her relationship was revealed to be fake had nothing to do with each other and her encouraging her daughter's romance was simply that since Aphrodite had always been shown in the series to coo over relationships she finds cute. Not to mention the actual time Piper and Jason spent together after learning they were demigods (over a year) was much longer than the time they spent together in Piper's Mist-created memories (three months of knowing each other and a few weeks of dating).]]

* UnintentionallyUnsympathetic: There are a number of fans who feel Piper regarding her reasoning for [[spoiler:breaking up with Jason makes her unsympathetic. When explaining to Apollo why she broke up with Jason, she says it's because she felt that Hera and Aphrodite forced them together. However, Hera created the fake memories not only simply for Jason's momentary convenience (as she had to have known that the Mist memories she created wouldn't last), but for her long planned goal of uniting the Greeks and the Romans, not out of any interest in Piper and Jason's relationship which she never commented on and never involved herself in. On Aphrodite's end, her claiming Piper and it happening right after her relationship was revealed to be fake had nothing to do with each other and her encouraging her daughter's romance was simply that since Aphrodite had always been shown in the series to coo over relationships she finds cute. Not to mention the actual time Piper and Jason spent together after learning they were demigods (over a year) was much longer than the time they spent together in Piper's Mist-created memories (three months of knowing each other and a few weeks of dating).]]

* UnintentionallyUnsympathetic: There are a number of fans who feel this way about Piper regarding her reasoning for [[spoiler:breaking up with Jason. When explaining to Apollo why she broke up with Jason, she says it's because she felt that Hera and Aphrodite forced them together, with Hera creating fake memories for her of her and Jason dating, and with Aphrodite, the Love Goddess, claiming her after her relationship with Jason was revealed to be a lie with no time for her to process it, not to mention Aphrodite [[ShipperOnDeck encouraging the relationship]] making Piper feel like she and Jason had no agency in being with each other. However, Hera created the fake memories not only simply for Jason's momentary convenience (as she had to have known that the Mist memories she created wouldn't last), but for her long planned goal of uniting the Greeks and the Romans, not out of any interest in Piper and Jason's relationship which she never commented on and never involved herself in. On Aphrodite's end, her claiming Piper and it happening right after her relationship was revealed to be fake had nothing to do with each other and her encouraging her daughter's romance was simply that since Aphrodite had always been shown in the series to coo over relationships she finds cute. In spite of being the Love Goddess, Aphrodite actually had no involvement in Piper and Jason's romance. Not to mention the actual time Piper and Jason spent together after learning they were demigods (over a year) was much longer than the time they spent together in Piper's Mist-created memories (three months of knowing each other and a few weeks of dating). Piper's feelings changing is more to blame than Hera and Aphrodite as Apollo had aptly summed up the situation as "People's feelings changed".]]

* UnintentionallyUnsympathetic: There are a number of fans who feel this way about Piper regarding her reasoning for breaking up with Jason. When explaining to Apollo why she broke up with Jason, she says it's because she felt that Hera and Aphrodite forced them together, with Hera creating fake memories for her of her and Jason dating, and with Aphrodite, the Love Goddess, claiming her after her relationship with Jason was revealed to be a lie with no time for her to process it, not to mention Aphrodite [[ShipperOnDeck encouraging the relationship]] making Piper feel like she and Jason had no agency in being with each other. However, Hera created the fake memories not only simply for Jason's momentary convenience (as she had to have known that the Mist memories she created wouldn't last), but for her long planned goal of uniting the Greeks and the Romans, not out of any interest in Piper and Jason's relationship which she never commented on and never involved herself in. On Aphrodite's end, her claiming Piper and it happening right after her relationship was revealed to be fake had nothing to do with each other and her encouraging her daughter's romance was simply that since Aphrodite had always been shown in the series to coo over relationships she finds cute. In spite of being the Love Goddess, Aphrodite actually had no involvement in Piper and Jason's romance. Not to mention the actual time Piper and Jason spent together after learning they were demigods (over a year) was much longer than the time they spent together in Piper's Mist-created memories (three months of knowing each other and a few weeks of dating). Piper's feelings changing is more to blame than Hera and Aphrodite as Apollo had aptly summed up the situation as "People's feelings changed".

* AuthorsSavingThrow:
** A slight one for a goof in the first book of the franchise: but Apollo's comment about having a kid with a mortal man offers an explanation on why Grover would suggest Percy was the kid of Sally and the goddess Nemesis.
*** Although, it's not like HomosexualReproduction is outside the realm of possibility for gods. Percy has a half-brother conceived from such a relationship. It had simply not been confirmed to be the case in the Riordanverse yet.
** ''The Burning Maze'' answers a question which people had probably been asking since the first ''Percy Jackson'' series, which was how come the demigods always still fight with ancient, traditional weapons like bows and swords and never more modern weapons like guns or hand grenades. Apollo answers this, saying the only weapons that would be useful for battling a monster have to be magical in nature (so you'd be worse off fighting with a normal mortal gun rather than something like a celestial bronze sword), and bullets and grenades are all single use, which isn't useful for a demigod fight.
** The references to other series in the verse with Ra, Frey, and Annabeth being in Boston for family reasons are appreciated by those who felt like ''Heroes'', ''Kane Chronicles'' and ''Gods of Asgard'' felt disconnected from each other.
** Artemis's reaction to her brother regaining his godhood. Many fans were pleased at her showing affection to her brother and showing that she does not hate men and is capable of platonic friendship with males.
** ''The Burning Maze'' could be considered by some who took issue with Jason and Piper getting romantic after being falsely led to believe they had already been so. [[spoiler:This is implied to be part of why Jason and Piper have broken up by the events of the third book.]]
** In ''The Tower of Nero'', Reyna chides Leo for addressing Calypso as ''mamacita'' during ''The Hidden Oracle'' after fan complaints of sexism, among other things.

* EpilepticTrees: In ''The Tower of Nero'', [[spoiler:Chiron wasn't available when Apollo and Meg arrived at Camp Half-Blood again because he needed to meet "with a cat and a severed head". Later, Apollo asks him about this and Chiron states they're associates from other pantheons, confirming they're [[Literature/TheKaneChronicles Bast]] and [[Literautre/MagnusChaseAndTheGodsOfAsgard Mimir]], having met for "a mutual problem". Cue fan speculation on what this problem that is huge enough to concern three pantheon representatives could be, ranging from the PrimordialChaos all three mythologies share in their cosmologies to the Abrahamic God.]]

* ClimaxBoss: [[spoiler: The final battle with Python in Tower of Nero, which features Apollo and Python duking it out in a FreeFallFight that takes them through Erebus, Tartarus, and all the way to a ledge overlooking the Void of Chaos.]]

* BadassDecay: Jason Grace. The son of Jupiter, and possibly one of the most powerful demigods alive, went from singlehandedly [[OffscreenMomentOfAwesome defeating titan Krios]] to struggling against [[spoiler:and ultimately being disposed by]] a Roman emperor who is a ''minor'' deity, therefore not far off the reach of someone who destroyed titans and giants. To a lesser extent, other members of the Seven like Leo don't get the chance of showing off their abilities. Some fans criticized the series for leaning so heavily on TheWorfEffect after expending the previous series developing the abilities and resourcefulness of the main characters.

** [[spoiler:Jason's death has led to many a flame war on the internet, with some calling out Rick for the supposed DarknessInducedAudienceApathy, along with people defending the death of such a "flat character".]]

** Well, first we've got Emperor Nero, AKA The Beast, AKA the least-likely-to-win-the-father-of-the-year award, because he is very explicitly abusive. Next we have the fact that that same emperor, in the first book, tied a bunch of '''kids''' to wooden stakes and intended to burn them along with the sacred oracle he wanted destroyed. And in another, Apollo attempts to commit suicide to stop the BigBad of that book from getting what he wants. Why isn't this series in the YA section again?

-->'''Rachel:''' Octavian, son of Apollo, you should take this more seriously. Even Romans respected your father's Oracle of Delphi.
-->'''Octavian:''' Ha! You're the Oracle of Delphi? Right. And I'm the [[spoiler:Emperor Nero]]!
-->'''Grover:''' At least [[spoiler:Nero]] could play music.