Syderia

Syderia is a star that debuts in Season 8.

Overview
The star is home to the Syderian Lumens. An ancient Syderian legend mentions some treasures hidden somewhere on the star. It is later revealed to be a very resistant magic crystal which caused the strange northern lights around Syderia. When the core is on, it was too bright and it hid the light from the crystal, keeping its location much more discreet. When the star core is attacked, the star automatically produces a magic barrier around itself to protect it.

Society
The Syderian Lumens are said to be part ogre according to Knut, and appear to have a more primitive society. They lack eloquence in their speech, and rely more on their natural inclinations as they go about their daily lives, sleeping whenever it gets dark, and live in caves as a large community. They appear to have a single Lumen in charge of meals for the rest, which includes some purple soup. They appear to be very headstrong, but they can be distracted. As part Ogre, they have characteristics common for ogres which includes their sense of humour and enhanced physical strength, relying on that and their wooden clubs in combat.

Apparently, the Syderian Lumens have well-known nursery rhymes where even Lumens like Twinkly from other Stars have heard of them. The two known nursery rhymes from the star centre around doves and ancient treasures on the star, the latter happening to be a real story.

Season 8
In "Treasures of Syderia", Obscurum and the Staryummies arrive at the core. The Staryummies begin to take in the light of Syderia on Obscurum's command as he prepares for his victory. The star gets darker, causing the Lumens to get fatigued as they begin to fall asleep. Obscurum enchants the Lumens with a nursery rhyme about the Winx being greedy creatures who would steal their treasures. They stop so the light does not completely fade away to allow for their plan to proceed.

The Winx arrive on Syderia, much to the Syderian Lumens' dismay, to which they plan to mount a defense to stop their plans. The girls arrive at the core, noting how it is obviously still in good health with no signs of aggravation. The girls transform to more closely examine the core, but get confronted by the angry Syderian Lumens who chase them down, repeating the rhyme they were fed by Obscurum.

Kiko and Knut follow Twinkly to Syderia, though land further away from the core than expected and proceed back. Obscurum continues to absorb the magic energy of the core with the aid of the Staryummies after the Lumens and Winx have cleared out. Once the last spec of core energy has been taken, the star goes dark and a protective barrier forms around the city of Lumens. The Staryummies retreat and Obscurum destroys the core. The trio find themselves at the core just short of the attack, finding it to have been destroyed, much to their dismay and confusion at the lack of the presence of the Winx.

The Lumens realise the core has gone out and blame the Winx. The girls attempt to stop them and examine them to understand the reason for their aggression, realising that Obscurum likely played a role in this. The separated girls rendezvous with each other to cook up a new plan to escape their fury, finding out about the magic barrier surrounding the civilisation much to the fairies' dismay. They retreat into a crack in the ground, finding the trio, learning about the destroyed core. They enquire about the rhyme reiterated by the lumens, finding out about the history of it. The Lumens arrive though Knut manages to halt and entertain them through their shared sense of humour though their ogre characteristics partly at Kiko's expense though un-cooperation.

The Winx plan to find the treasure of Syderia to earn the Lumens' trust. They quickly find it due to its strong magic glow and power it further to light up the star once again. The sleeping Lumens awaken. Kiko and Knut get bound by the angry Lumens after failing to conintue to entertain them but immediately drop everything when they see the glow of the crystal, elated to find the once hidden treasure, realising that the Winx are not their adversaries after a simple explanation of their misunderstandings. To thank the Winx for saving their star, they offer a small piece of the crystal. Bloom thinks to get Orion to use the crystal to build artificial cores for other broken stars which excited the other Winx

Locations

 * Core of Syderia
 * Caves of Lumens

Winx Club

 * Lumens

Trivia

 * Its core is the second one seen in the series to be destroyed after the Iridian core.
 * It is the only known star to no longer rely on a conventional star core to light up the star, instead relying on the Cosmix-enhanced light crystals native to the star.