“In the time of Hákon, Æthelstan’s foster-son, there lived in Norway Björn the Pale, who was a Berserk. He went round the country and challenged men to _holmganga_ (duel) if they would not do his will” (Gisli Sursson’s Saga, p. 1). This berserk-fury was not only utilised in war, but for the performance of hard feats which were held to be out of the power of ordinary people. In some cases this fury seems to have come over the Berserks apparently without cause, when they trembled and gnashed their teeth. “The Berserk Arngrim of Bólm had twelve sons; Angantýr was the oldest, the second Hervard, the third Seming, the fourth Hjörvard, the fifth Brani, the sixth Brami, the seventh Barri, the eighth Reytnir, the ninth Tind, the tenth Bui, the eleventh and the twelfth both called Hadding. They were both together equal to one of the others, but Angantýr was equal to two, and was a head taller than any of them; they were all great Berserks. They went on warfare when they were quite young and ravaged far and wide, but met with no equal in strength and courage; thereby they got renown and victory. The twelve brothers went together on one ship with no others; but they often had more ships. Their father had taken in war the most excellent weapons; Angantýr got Tyrfing, Hervard Hrotti, Seming Mistiltein (Mistletoe), which Thráin[365] afterwards took out of his mound. All the brothers had excellent holmganga-swords. It was their custom if they were only with their own men when they found the _berserks-gang_ (berserk-fury)[366] coming over them, to go ashore and wrestle with large stones or trees, otherwise they would have slain their friends in their rage. Never did they engage in battle without gaining the victory; therefore great sayings were told of them. There was no king who would not give them what they wanted rather than suffer their overbearing. They were on warfare during the summer, but during the winter they remained at home in Bólmey with their father” (Hervarar Saga, c. 3).[367] In the following Sagas we have an example of the stuff the men of the North, or the Vikings, were made of. “When Fridthjof landed after a storm ... in the Orkneys, one of the Berserks of the jarl said: ‘Now we will try if it is true that Fridthjof has made a vow that he will never be the first to ask peace of another.’ They were ten wicked and greedy men, and often had berserk-rage; when they met (Fridthjof) they took their weapons. Atli (one of the Berserks) said: ‘Now it is best, Fridthjof, to look us in the face, for the eagles must fight with their claws face to face, and now it is best to stand by one’s words, and not be the first to ask for peace’” (Fridthjof’s Saga, c. 7). It was believed that neither fire nor weapons could harm the Berserks. In war they fought without coats of mail in a bare shirt or kirtle; hence their name.