Fanghook is Gustav's new dragon appearing in The Flight Stuff. He is a yellow and purple Monstrous Nightmare. Although he was supposedly released into the wild, he still sees Gustav every day to train with him.


Fanghook has the characteristics of a normal Monstrous Nightmare, although he is seemingly kinder and gentler than Hookfang, although still having the brashness from him. He is seen to be easily intimindated by Hookfang when they first met and more compassionate to Gustav than Hookfang is to Snotlout most of the time. Although just meeting Gustav for only a day, the dragon and boy quickly bond together enough for Gustav to ride him, making the dragon somewhat protective of him. He has an undeniably strong sense of loyalty towards his rider.


Fanghook first appeared when Gustav was looking for his own dragon. After neglecting the Terrible Terror and the Deadly Nadder, he found Fanghook chasing boars, picking him because Snotlout described the Monstrous Nightmare as "the most lethal dragon in the known world ." However, due to Snotlout's "training," Gustav's relationship with Fanghook was like Snotlout and Hookfang's.

Gustav decides to head to Outcast Island after overhearing about the scouting mission from Trader Johan. The two easily gets captured in Dagur's new trap, but is soon released by Hiccup. They then work with Snotlout and Hookfang to save Hiccup and Toothless.

The next day, Gustav releases Fanghook back into the forest. After Hiccup and Snotlout leave, Gustav calls his dragon and the two continue training together in secret.

Skills and AblitiesEdit

Fanghook mostly has the abilities of a normal Monstrous Nightmare.

  • Intelligence: Gustav is able to teach Fanghook multiple different complex commands in a short amount of time.
  • Defensive Maneuvers: A command taught by Gustav to avoid incoming projectiles.
  • Fire it Up!: A command taught by Gustav to light himself on fire. Fanghook often uses it for defensive purposes. It is also Gustav's battle cry.
  • Loyalty: Fanghook shows a considerable amount of loyalty, especially not running off when he was released and merely waited for Gustav to call him.


  • Fanghook first appearance in Episode 12 "The Flight Stuff."
  • Fanghook's name is a play-on name on Hookfang (Snotlout's dragon).
  • Fanghook's coloration is similar to the Monstrous Nightmare Astrid trained on Outcast Island when she was pretending to be Heather.
  • Fanghook is the only known dragon on Berk to be training outside the Dragon Academy.
  • Fanghook is shown to be smaller than Hookfang.