Searching the forest, Hiccup finds the dragon trapped in a shallow glade; the dragon's tail was injured, preventing it from flying normally. Hiccup discovers a way to earn the dragon's trust and begins to care for it. He names the Night Fury "Toothless", for its retractable teeth. Later, Hiccup fashions a makeshift harness and prosthetic tail that allows him to guide the dragon in free flight. Hiccup is able to transfer his knowledge of dragons to the other species of dragons at dragon-fighting class, appearing to conquer each one in battle and becoming the star pupil, much to the dismay of Astrid, a girl in dragon training on whom Hiccup has a crush. Eventually Hiccup completes the class and gets the chance to kill a dragon in front of the entire village. Meanwhile, the battered Viking fleet arrives home.
Later, Astrid follows Hiccup, and is shocked to discover Toothless. She attempts to escape to tell the rest of the village, but Hiccup takes her for a ride on Toothless. At first, Astrid is terrified, but then begins to enjoy the excursion. However, Toothless unexpectedly joins a flock of dragons and takes the pair straight into the dragon's nest, where they discover the presence of a gigantic dragon named the Red Death.[note 1] The Red Death depends on the food the other dragons bring back, and if the other dragons fail to capture anything, the Red Death feeds on the dragons themselves, which is the reason why the dragons have