- Originally discovered by Bork the Bold, this cavernous island contains the Fireworm Queen and her highly flammable hive of Firecomb. The dragon riders successfully navigated their way here by following a lantern filled with Fireworms, which glowed brighter as they neared the nest.
Dragons: Defenders of Berk
When Snotlout Jorgenson's dragon Hookfang lost his ability to flame on in "Reign of Fireworms", he was then taken to the island for a cure. There, Hiccup, Toothless, and Snotlout went inside the island's cave. There they saw a hive of Firecombs which had gel that gave the fireworms their heat. Snotlout attempted to take one of the fire-combs but was confronted by the Fireworm queen.
Dragons: Race to the Edge
Three years after the end of The Berserker War, the Fireworm queen's nest came under attack by a Cavern Crasher. She flew off to ask the Dragon Riders' help in chasing the intruder away, and they succeeded in doing so.