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Plot ending or details from How to Train Your Dragon: The Hidden World are included in this section. Click here to skip to the next section.

The Light Fury is a new dragon species that is first discovered in How to Train Your Dragon: The Hidden World. It is a close relative and a variation of the Night Fury[1], and it was given its name by Hiccup and Astrid.[1] The only known Light Fury is a female that becomes Toothless' love interest and potential mate, though unlike Toothless, she is not the last of her kind.


The Light Fury is an engine of change in our story, representing the call of the wild, which is key to Toothless’ destiny.
  Dean DeBlois[2]  

Director Dean DeBlois describes the Light Fury’s role as a call to the wild for Toothless, who lacks many primal instincts regarding love and she will detach Toothless from human influence.

Physical Appearance

Light Furies greatly resemble Night Furies, but they are sleeker with lighter coloring and glimmering textures that include white, cream, and pink. They possess a long, single spine running down the center of their back and light blue eyes. They also have two pairs of ear-like appendages on the top of their heads and a pink-colored nose.  Because it is a variant of the Night Fury and not the same species, there are differences. Toothless, the only known Night Fury, has very large scales covering his appendages, legs, and snout. The Light Fury does not show these traits. In addition, the Night Fury has ridges going along the middle of its head, whereas the Light Fury does not. On the sides of its head, the Light Fury has two fewer appendages than the Night Fury, and the head of the Night Fury is slightly longer. The mouth of the Light Fury is shorter, and it doesn't stretch as far across its face as the mouth of the Night Fury. This last trait, however, might just have to do with the personal traits of Toothless and the Unnamed Light Fury, and it may not have anything to do with the species.

Unlike Night Furies, the wings of Light Furies are shorter with no sharp tips at their ends. They are glittery white in coloration and have strips of glittery light pink running down their wings.

The tail flukes of the Light Furies are triangular in shape, white in color and shorter than the Night Furies’. They have two smaller triangular flukes just above the main ones, these are hard to notice.  But just like Night Furies, Light Furies are unable to fly if one of these tail flukes is destroyed.



Light Furies are capable of shooting explosive plasma blasts, which resemble the ones produced by Night Furies. It is very likely that the plasma produced by the two closely related species share the same chemical components. In the same respect, Light Furies have an amount of control over when their flame blasts explode in the air.


The Light Fury cloaking herself

Cloaking process of the Light Fury

Light Furies possess the amazing ability of seemingly disappearing when they fly through the blasts of their fire. This is, in fact, a form of cloaking that occurs when their skin heats up, which causes their scales to have mirror-like qualities, allowing them to temporarily blend in with their surroundings[3].


Light Furies are able to carry heavy objects, including humans and dragons that are larger than themselves. 

Behavior and Personality

Just like Night Furies, Light Furies are very intelligent and very elusive. They seem to be sociable towards other Furies, but they can be aggressive when unknown humans interfere with them or their natural lifestyle.


How to Train Your Dragon: The Hidden World

This section requires expansion.


  • The fact that the Light Fury and Night Fury are related implies that dragons are members of 'families', like many animals in real life (I.E, caimans, alligators, and crocodiles are all related through the crocodilian family).
  • The Light Fury is the second dragon that resembles the legendary Blue-Eyes White Dragon from the Yu-Gi-Oh! franchise owned by Seto Kaiba, with the first being the Snow Wraith.


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