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The Haddock House is used by the Haddock family as means of shelter from the weather.
Inside the Haddock House, Hiccup tells his son, Nuffink, a story about dragons. He then exits the house, where his daughter, Zephyr, designed booby traps for dragons to protect the house. She then explains to her parents that she found the Dragon Manual, and learned the truth about dragons, that they are monsters. She then gets out of the house with her brother and begins building more traps.
Hiccup and Astrid make a fire just outside the house and discuss their children. Astrid comes with the idea of making a Snoggletog Pageant for the children and show them how Vikings and dragons lived together. Hiccup agrees and starts to work on the plan, while Zephyr and Nuffink test the booby traps.
After the Pageant, the Haddock family returns home, only to find a green glowing structure (made by Toothless and the Light Fury). They discover that the fish bowl they left for Toothless was empty, so they look outside, only to see Toothless and his family flying away in the night.