Dune

Appearance
Dune had scales of a dull, deep tone of rattan, powerful sandy-yellow wings, and flashing black eyes. He had scars on his throat and over both eyes with the scar on the right side of his face stretching to the corner of his jaw. He was large, bigger than Scarlet.

His foreleg and right wing were badly injured in combat against IceWing soldiers, with the formerly frozen parts of his wing having been snapped off, leaving only misshapen, blackened ruin. His wing was further destroyed when Burn sliced through its tendons and membranes, leaving a long scar running through it and causing it to trail crookedly beside Dune.

He also lost his foot, leaving only a foreleg stump, and he wore an oddly shaped stone around his neck that served as a key to unlock the boulder that blocked the cave entrance.

Personality
In Deserter, Dune was shown to be a very enthusiastic dragonet who enjoyed the thought of becoming a soldier. At one point, he convinced his teacher to allow him to come along with Six-Claws to save Blaze from an approaching sandstorm. During the start of the war, when he was on Burn's side and a brother-in-arms of Six-Claws, he began to lose his normal happier personality traits, becoming sarcastic and untrusting due to Burn's mutilation of him. This was done to scare Six-Claws into obedience. By the beginning of The Dragonet Prophecy, Dune was grouchy, tough and didn't show much fondness towards the dragonets, except for Sunny (likely because they were both SandWings). He was also not as outwardly cruel as Kestrel, having spent extra time to ensure that Starflight understood particular topics. He also bravely protected them when they were found by Queen Scarlet, despite his injuries. Despite not showing it much, he did care about them.

Six-Claws
Dune met Six-Claws in Deserter, and the two were good friends, both working in the army as soldiers in Burn's army. Six-Claws was horrified by Burn's treatment of Dune, and he left the army along with Dune and a doctor named Kindle.

Sunny
Unlike the other guardians, Dune didn't seem to dislike Sunny; it is implied that this is because she's a SandWing like him and he even stuck up for her sometimes. He also thinks that Sunny isn't as big a problem to the prophecy as Glory is, as he tells the other guardians that he "isn't worried about Sunny" and that they "followed the prophecy's instructions." She seemed to like Dune the best out of the guardians and called on him for help in times of need. She was devastated when Scarlet killed Dune.

Thorn
Dune was considered by Thorn to be the only friend she could trust to keep Sunny's egg safe. When he took the egg, she immediately sent up wanted posters for him.

Quotes

 * "I guess minding dragonets runs in the family, […] But I hope I don't have to do it for the rest of my life. Dragonets are so aggravating. I want to be a soldier! I want to fight in battles and do glorious things and be a hero! […] What do you want to do?"
 * ― to Six-Claws about wanting to be a soldier (Deserter)


 * "Whoa, […] Is that the princess? Why would she be out in the dunes by herself? By all the lizards, she is going to get crushed by that sandstorm."
 * ― to Six-Claws about Blaze (Deserter)


 * "He didn't take her out there! […] He saw her out there alone and rescued her, that's what he did!"
 * ― to Blister, about Six-Claws saving Blaze (Deserter)


 * "She said I have more promise than any officer she's ever seen. […] She said I have extraordinarily strong wings for a SandWing — almost like a SkyWing's! She said I'd be commanding armies of my own in no time."
 * ― to Six-Claws, about Kindle (Deserter)


 * "That it's stupid, […] and we were stupid for being loyal in the first place, and now we're paying for it. I'm paying for it. There's no point to any of this."
 * ― (Deserter)


 * "I'm not worried about Sunny. We followed the prophecy instructions. It's not our fault she's the way she is. But the RainWing — He's not going to like that."
 * ― to Kestrel and Webs, about Morrowseer (The Dragonet Prophecy, page 32)


 * "It's not natural, that much loyalty in a dragon … Especially to dragons outside your own tribe."
 * ― about Clay (The Dragonet Prophecy, page 54)

Trivia

 * While Dune's parents were both teachers, Dune expressed to Six-Claws that he had no desire to become a teacher himself in Deserter.
 * Despite canonically missing a foreleg, the graphic novel depicts him with all limbs intact.
 * In the graphic novel, Dune's damaged wing doesn't appear to be limp or drag across the ground when he walks, but is still shown covered in scars, burns and has holes shown in the membrane.