Fafnir his foster-son Sigurd to kill the dragon. Regin instructed Sigurd to dig a pit in which he could lie in wait under the trail Fáfnir used to get to a stream and there plunge his sword, Gram, into Fafnir's heart as he crawls over the pit to the water. Regin then ran away in fear, leaving Sigurd to the task. As Sigurd dug, Odin appeared in the form of an old man with a long beard, advising the warrior to dig more trenches for the blood of Fafnir to run into, presumably so that Sigurd does not drown in the
Idis (Germanic) Idis (Germanic) In Germanic mythology, an idis (Old Saxon, plural idisi) is a divine female being. "Idis" is cognate to Old High German itis and Old English ides, meaning 'well-respected and dignified woman.' Connections have been assumed or theorized between the idisi and the North Germanic dísir; female beings associated with fate, as well as the amended place name Idistaviso. One of the two Old High German Merseburg Incantations call upon female beings—"idisi"—to bind and hamper an army. The incantation reads: In line 1259 of the Old English poem "Beowulf", Grendel's Mother is introduced as an "ides": The idisi mentioned