This article contains plot details from the latest book.
“I know I'm good at giving you a hard time for not hanging out with everybody equally. But... I do get how much you're dealing with, and how hard it has to be to keep up with all of it and occasionally sleep and eat and see your boyfriend.”
The name Marella means "shining sea" (ironically, since Marella is a pyrokinetic).
(good job to the person who made this picture it is absolutely stunning great work)
In Nightfall, it was revealed that Marella is a Pyrokinetic, which is a rare and misunderstood ability to control and create a fire that comes with a strong desire for the heat. It also attracts heat, as shown when the chosen group for exploring the first Nightfall, marched up a snowy slope, and Marella was the only one not shivering uncontrollably. She said the reason why she was not cold was that the heat was attracted to her.
Her pyrokinesis was triggered by Mr. Forkle when she told him, Sophie and her friends that she wanted to manifest as an Empath to help identify and control her mother's unstable emotions, in exchange for information on Cyrah's murder. A few nights after Mr. Forkle triggered her ability, she thought she had a fever, and woke up that night covered in fire. Her mother stepped up and took the blame for setting the spill; everyone believed that story, as Marella's mother was seemingly "eccentric", due to a vaguely described accident and incurable head trauma that resulted in her emotional instability.
Marella is hardly mentioned in Neverseen at all, except during Fitz's and Sophie's cognate training, when Sophie's biggest regret is neglecting Marella.
Wylie is attacked by the Neverseen and interrogated about the death of his mother, Cyrah Endal. Mr. Forkle comes up with a list of people who were present at the marketplace, where she died. Caprise Redek, Marella's mother, is on that list. Marella gives the Keeper crew the information her mother knows about Cyrah's death. In exchange, Mr. Forkle triggers her special ability. The ability remains unknown at the end of the book. Marella's and Sophie's friendship begins to heal, as Marella realizes how crazy Sophie's life is.
Marella's special ability is revealed to be pyrokinesis. Because the gorgodons are only vulnerable to fire, she goes to both Vespera's Nightfall and Lady Gisela's Nightfall. In Vespera's Nightfall, she goes with Grady to capture Fintan.
Marella reveals that she swore fealty to the Black Swan before her first pyrokinesis lesson with Fintan. Per Keefe's request, she goes to Loamnore and illuminates the room with flames when Tam is forced to darken it. She is knocked out by a dwarf, but wakes up later.
Marella is also shown to be bitter—specifically about people's view of her mother's condition, as she hates when people gossip about her mother. She notably clenched her fists when she told Sophie how everyone completely believed that "crazy Caprise Redek" set the fire when actually Marella's unexpected manifestation of pyrokinesis sparked the flames.
Marella isn't one to back down from a challenge. Throughout the first few books, she defends Sophie from Stina and says she enjoys doing it. She also isn't afraid to say what she means and clearly isn't one to sugarcoat things.
Marella seems to have a dry sense of humor, occasionally making sarcastic remarks.
Marella doesn’t exactly filter everything that comes out of her mouth, so some of her remarks may be insensitive. In the first book, she talks about Grady and Edaline isolating themselves from everyone and becoming loners when Jolie died, without seeming to care, and Sophie thinks of it as rude. She speaks her mind though, which is one of her strongest qualities.
Marella is often cracking jokes, and when Sophie notices she is not acting like her usual happy and hyper self, she is concerned. Marella is outgoing and doesn't care what other people think of her. She always speaks her mind and does not back down. In correspondence to Sophie, the girl of many mysteries, who often take peoples' words to heart, Marella always has her brave face on and is ready to face any challenge.
Physical Appearance Edit
Marella is described as a very short, slender, pixie-like elf with shoulder-length blonde hair that "twists in and out of tiny braids." She is also said to have huge, ice-blue eyes—very much like Keefe's were described. Unlike Biana, Marella certainly is not into glitter or sparkles and even criticized Biana and Sophie for talking about dresses, at an important time. Marella is not at all concerned with her appearance, which can make her look a bit disheveled. She is also described to be a Tomboy.
Marella sat with Sophie at lunch in Sophie's first year, despite also having to sit with the Drooly Boys. Later, Sophie started hanging out with Biana, and Marella felt unwanted. Marella was also angry that all of Sophie's good friends dropped out of school and joined the Black Swan without telling her. She and Sophie made up, and now Marella is also a member of the Black Swan.
Sophie sat with Jensi and his friends, of whom Marella calls the Drooly Boys ( Jensi, Valin, etc.) and Marella took it upon herself to save her from "committing social suicide". Later on in the book, Jensi, Marella, and Dex all sit with Sophie, Keefe, and the Vackers.
In the first book, Marella believes Biana to be very snobby, but as the books progress she warms up to her some.
- CAPRISE (mother)
Caprise Redek received a head injury that even Elwin couldn't fix, causing her emotions to be out of control at times. Marella hoped to manifest as an empath so she could help her mother deal with her precarious emotions. Marella is shown to be bitter towards elves who judge her mother because of her condition.
- LORD REDEK (father)
In Lodestar, Marella was caught staring at Tam. In addition, they seemed to be teasing each other in Nightfall. Marella also shot Tam "her flirtiest smile." When Biana complains about girls becoming her friend to get to her brother, Fitz, Marella says she bets Linh feels the same way... In Legacy Marella mentions that Linh probably named her murcat Princess Purryfinns to annoy Tam by making him say the name Marella also says she loves that idea.
Since the beginning of the series, Marella has shown a disliking towards Stina, although after Sophie began neglecting her, she began to befriend Stina. After she manifested as an Empath, however, Marella became jealous of her ability.
- FINTAN (teacher/enemy)
Shannon Messenger Character Bio Edit
Marella hates nicknames. Don't even think about calling her Mare or Ella. And don't expect her to like you, because she'll probably think you're annoying. Most people are, which is why she's perfectly content sitting by herself at lunch. But sometimes she'll make an exception if someone seems like they might be remotely interesting—like Sophie Foster. Anyone who can cause as much drama and chaos as Sophie can is definitely Marella's style. Especially since Sophie is also friends with some super cute boys. Marella will always make time for super cute boys. She's also excellent at keeping up with the latest gossip—but don't you dare talk about her family! 
- Marella is an Irish name, meaning "shining sea".