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This article contains plot details from the latest books.
“So the fact that you never wear your hood - is that a protest? Or because you want everyone to see your awesome bangs?”
Glimmer is a defected Neverseen member and a flasher. In Legacy, she was the one who tied bonds onto Tam's wrists to let the Neverseen control him. She is described by Sophie as a girl (most likely not an adult).
Glimmer's Identity Theories Edit
Although a long shot, some fans believe that Glimmer may be Mai Song, Tam and Linh's mom. First off, both Glimmer and Mai have long, straight ebony hair, as do Tam and Linh. It is said in the Tam Short Story from Tam's POV that Glimmer sounds like Linh when she speaks. She also showed that she cares about Tam during his stay with the Neverseen, often checking on him and trying to become his friend. Mai Song/Glimmer was likely recruited to the Neverseen by Lady Gisela. Lord Cassius briefly mentioned that he knew Quan Song (Mai's husband) and they sometimes met up. It would make sense for Lady Gisela and Mai to then hang out together, and when Lady Gisela noticed how powerful a Flasher Mai was, she may have invited her to join the order. Mai also seemed to regret letting Tam and Linh get banished, so she may have been angry at the Council, and joining the Neverseen might have been her way at getting back at them. She could have been mad at them for not silencing the prejudice on multiple births, too, since she maybe felt pressure to say that her children weren't twins (not to say that what she did was right).
Additionally, this would mean that Mai Song is a Flasher, while Tam is a Shade, and the two abilities may have the same core, similar to Empaths and Enhancers. This would explain why Tam is a Shade. Glimmer is said to be an extremely powerful Flasher, and both her children are also very talented ability-wise.
They are both Flashers, and they both have long black hair. Luzia is mentioned at the beginning of Legacy, she was apparently "waiting to be sentenced" and we hear nothing more of her. She has always been cunning and is known to keep secrets. She is also known to be a powerful Flasher and would thus be able to make the etherine bonds that Lady Gisela had put on Tam. She has worked with Vespera before, so maybe Vespera/Lady Gisela recruited her. She could have joined the Neverseen for any number of reasons, but after the "Scandal at Everglen," she is probably bitter towards the Councillors for her tribunal and she is maybe even a little bitter towards Sophie and her friends for exposing the hive at the Celestial Festival (even though that was Vespera, Lady Gisela "has proven time and time again to be a master of mind games and manipulation".) She has also proven to "change sides" from working with Vespera to helping Sophie save Wynn and Luna. She might not want to show her face because she betrayed Sophie and her friends by not telling them about the troll hive at Everglen.
Fans speculate that Jolie could have been forced to fake her death and join the Neverseen. In Everblaze, it mentioned how she loved Brant up until the end, but if that wasn’t the end, she would have been committed to the cause after he died even more if she still loved him, explaining the comment that she is one of the most committed members they’ve ever had. She could be working with a Flasher to save light and then conjure it, making her look like a Flasher even though Jolie is a Conjurer. She snaps her fingers to move already-existing orbs of light, something that Wylie, Elwin, and other Flashers never have to do. They only flick their wrists to move light, although they do snap to create it. Glimmer snaps her fingers just like a Conjurer, which Jolie was. Glimmer is described as having long black hair, unlike Jolie’s blond, but she had Raven LovelyLocks (black hair dye) on her desk. The reason she might not lower her hood is because she might be scared to face Grady and Edaline after over 17 years of them believing their only daughter was dead. Her age is also similar to that of Glimmer.
Glimmer may have been a genetic experiment made by the Neverseen, ordered to spy on Tam and the rest of the Black Swan. Lady Gisela also says that Glimmer is more loyal to the cause than anyone she’s ever met.
Lady Cadence Talle is a Polyglot, which means she can Manifest twice. She could've manifested into a Flasher. Tam said that she sounded like Linh, and that may be because she is good at mimicking. Her hair is raven black, and she might've been with the Neverseen in the first place and was sent to Mentor Sophie in Foxfire to spy on her. That could be why the Neverseen knows so much about Sophie and her friends. She might not lower her hood because she is scared of what the Councillors will do because they thought she was trustworthy. The Neverseen might've tortured Fitz and Keefe so much because they knew how much Matchmaking meant to her, and they wanted Sophie to cooperate. Lady Cadence Talle could tell them that because members of Team Valiant went to investigate her to ask her if she was Sophie's biological mother. Lady Cadence might've run off to join the Neverseen because she was stuck living with the Ogres. However, Lady Cadence is already a Polyglot and Conjurer, so this theory isn't perfect. But like we said with Jolie, she can conjure light.
- Lady Gisela's daughter
Lord Cassius always wanted a son, which could mean that Glimmer is Keefe's sister. This explains why she went willingly with them at the end of Legacy. Lady Gisela could have taken Glimmer to the Neverseen to raise her, which is a reason why Lady Gisela said, as previously stated, that Glimmer is more loyal to the cause than anyone she has met.
Glimmer is said to try to befriend Tam, and we know that Coach Rohana was his coach at Exillium. They both have long, black hair, and we don't know what Coach Rohana's ability is. Lady Gisela also mentioned that Glimmer was more devoted to their cause than anyone else, which could suggest that she was banished or wronged by the Council. We also know for a fact that all 3 Exillium Coaches are not a fan of the Council.
- A previously unknown character
Although Glimmer has many traits in common with other characters, there are also many contradictions that make them unlikely. It is mentioned that Glimmer has long black hair, which she has in common with Linh and Mai Song. However, black hair is fairly common, and anyone could use black hair dye, such as Jolie is speculated to have used. Glimmer also is noted to be a girl, or someone of a younger age, which makes many of the fan theories unlikely.
- Jolie and Brant's Daughter
She seems to have been living with the Neverseen for a relatively long time. If Brant had a daughter he would most likely want her to be in the Neverseen. Jolie died over sixteen years ago, and the girls' age is presumed to be around 16. When Tam was talking to her she said "Hey, you're asking me to betray-" She could have been trying to say they were asking her to betray the people she grew up with.