- Anticlimax Boss: The Elf King, in spite of being set up as the Big Bad, ends up being easily killed by Emily. Ultimately, Ikol is much more important than The Elf King.
- Angst? What Angst?:
- After having spent the entire series brooding due to her father's death and having just learnt at the end of the previous book what exactly caused him to die, Emily gets over it rather quickly after having a pep talk about it with Moze in "Supernova".
- Trellis despaired for a couple of panels when he finally knew what happened to his mother in Supernova, but it wasn't addressed at all after that scene and he seems mostly unaffected by it after leaving the memory.
- Ass Pull: How does Emily escape the Void in "Supernova"? Her future self and her son show up out of nowhere to help her escape to an exit portal, despite the fact that the previous books have established multiple times that you can only escape the Void by dispersing yourself into light and that the Void cannot actually be used for time travel. Trellis, who she had told to find her as she was about to be taken into the Void, also has little to no involvement in her escape.
- Cliché Storm: You have the rebellious scarred prince who wishes to overthrow his father and is morally ambiguous, the Chosen One who is spoken of in a prophecy (two counts of them with both Navin and Emily,) a magical MacGuffin that is more dangerous than it seems at first, the grumpy but honest and hardworking member of the team in Cogsley, a floating city in the sky with a dark secret, and these are just a few examples. While the writing of the story can leave much to be desired, the writing in everything else, the art, and the ubiquitous Nightmare Fuel combined still manage to hold up, however.
- Harsher in Hindsight: The car accident that killed David is made a lot worse when it's revealed in Book 7 that the whole incident was caused by someone trying to commit suicide.
- Narm: When Silas finally dies, while it does make sense in context, what is intended to be a somber moment is made a little comical by the lights going out, complete with By the Lights of Their Eyes.
- Nightmare Retardant: After all of the Nightmare Fuel in Firelight from Emily's transformation into a firebird, Emily turns out to be autonomous still, and she is freed by her older self time-travelling from the future. Many fans think this made Emily's plot in Firelight much less impactful in hindsight.
- Shipping: There's some fans of the series who ship Emily and Prince Trellis ("Tremily"). It helps that, although Trellis looks much older, Word of God has him being close to her own age at 14 (and later 16.)
- Stoic Woobie: Trellis ever since Book 1, though the audience doesn't learn the full extent of it until later. When he was young, he was scarred, mind-wiped, and enslaved to a mind-controlling parasite by his own father for finding out the truth about the Voices, and the only people who ever cared about him were either killed, like Virgil, or used against him, like Luger. He then grew up under a cold and clearly emotionally abusive father, during war times, and was treated like crap even by his own people by the time he became a teenager. Things only get worse for him for a while after defecting from his father, until he becomes friends with Emily at least until he watches her break down and lose control of her stone while he's helpless to stop it... and yet, Trellis has rarely ever broken down or even complained about this in any of his appearances, even after regaining his memories about his youth.
- They Changed It, Now It Sucks!: New-timers just recently starting the series won't find the change from fantasy to sci-fi too jarring, but many of the older fans used to—and pulled in by—the fantasy genre are unhappy now that Kazu is changing it.
- They Wasted a Perfectly Good Plot: There are fans who feel this way about Emily's escape from the Void and Stone's control in the eighth volume. The plot of Emily losing control of her power and becoming a monster was presented as a real threat since Volume 2, and her actually going over the edge in Volume 7 was presented as a Darkest Hour for the heroes. By comparison, Volume 8 has her break free of the stone's control about a third of the way in, and thanks to two new minor characters who are never seen again after (when up to that point it was presented as Trellis' responsibility to help her.) The rest of her plot is just her leaving the Void, which she achieves, again, thanks to completely new characters and plot elements that contradict previous volumes. Similarly, the emotional turmoil she experienced that led to this plot in the seventh volume (specifically her trauma over her past) was utterly glossed over in the next.
- Uncanny Valley: The physical form of the Voice in Emily's dreams. He's not that creepy usually, but when he smiles, he does so with a full mouth of teeth. It's the most defined part of his face; the rest of him is just a shadowy spirit figure.
- What Do You Mean, It's for Kids?: the age demographic is 9-12 and Kazu intended it to be enjoyed by all age groups and at its core a children's story meant to be understood easily with the usual themes of adolescence. It also has the onscreen death of a parent, child abuse, war, opression, tyranny, racism, child soldiers, attempted assassination on children, attempted and successful murders, emotional and political manipulation, and genocide.
- What The Hell, Casting Agency?: Willow and Jaden Smith were announced to play Emily and Navin for a film adaptation of the books, which appears to have halted in development.
YMMV / Amulet