The Red Death is the main antagonist of How to Train Your Dragon.
History[]
The Red Death is first seen when Hiccup, Astrid and Toothless see many dragons feeding the massive dragon. Soon she eats a Gronkle that only drops one fish. She also sees that Toothless is teamed up with humans. However the group escape and soon tell everyone.
After a bit, Stoick and his fellow vikings begin to attack the dragon and she begins to fight back. Luckily for everyone, Hiccup's fellow viking students arrive and allow him to save Toothless. Soon Hiccup and Toothless begin to shoot at the dragon only for her to get angered.
Death[]
During the battle, the Red Death fires at Toothless and hits his tail. Toothless and Hiccup begin to distract the giant dragon and as she is about to make one last attack, Toothless blasts his plasma breath down her throat. After this, the Red Death plummets to the ground and explodes.