Fimbulwinter. The wolf Fenrir was bound by three fetters: Loeding, Drómi, and Gleipnir, of which only the last held him. Loki is bound with three bonds made from the entrails of his son through holes in three upright slabs of rock, the first under his shoulders, the second under his loins and the third under the backs of his knees. In the poem Völuspá from the Poetic Edda, the monstrous hound Garmr howls three times at the Gnipa-cave (or at least, the description of his howling is repeated three times). In Völuspá, the gods burn Gullveig three times and three times she is reborn. During the onset of Ragnarök three cockerels will begin to crow, heralding the final conflict: Gullinkambi for the gods, Fjalar for the giants and an unnamed third for the dead. Bifröst the rainbow bridge has three colours. It also has two other names, Ásbrú and Bilröst, thus having three names. Heimdall has three special powers in his role as guardian of the rainbow bridge. He needs less sleep than a bird, can see at night for a hundred leagues and is able to hear grass growing on the earth. Odin has three special possessions: His spear Gungnir, his golden ring Draupnir and his eight-legged horse Sleipnir. Thor has three main weapons for use against the giants: his hammer Mjolnir, a magical belt that doubles his strength and a pair of iron gauntlets that allow him to wield the hammer. Freyr has three magical items, including the ship Skidbladnir, his boar Gullinbursti and a sword with the ability to fight on its own which he gave to Skirnir in return for his role in the courtship of Gerd. Freyja also has three special artefacts, including the priceless necklace Brisingamen, a cloak that allows her to assume the form of a falcon and a chariot drawn by a pair of great cats. In the stronghold of the giant Útgarda-Loki, Thor drank three mighty draughts from a horn during a drinking contest but gave up when he was unable to empty the horn of its contents; this was also one of three tasks he did -and failed- during his stay, the other two being to lift a cat (he made it lift a paw, leaving three on ground) and to defeat an old woman; it is later revealed that the horn was connected to the sea (which he leveled