Iwald's sons to make some golden hair for Sib, as good as that which
he had destroyed. Now Iwald had had seven sons, and these all
lived deep below the earth in the great caverns which lie below the
mountains, and these sons were small and dark; they did not like the
daylight for they were dwarfs who could see best without the sun to
dazzle their eyes; they knew where gold and silver grew, and they
could tell where to find beautiful shining stones, which were red, and
white, and yellow, and green; they knew the way all over the world by
running through caverns and passages under the mountains, and wherever
they could find precious stones or metals they built a furnace, and
made an anvil, and hammer and bellows, and everything that was wanted
in a smithy; for they knew how to fashion the most wonderful things
from gold and iron and stone, and they had knowledge which made them
more powerful than the people who lived above the ground.

Thor let the mischief-maker go to get the help of the dwarfs to repair
the wrong which he had done, and Loki sought about the mountain-side
until he found a hole which would lead him into Iwald's cave, and then
he promptly dropped into it. There in a dark cave gleaming with many
sparkling lights he went to the two cleverest dwarfs who were named
Sindri and Brok, and told them what it was he wanted, adding that he
would be in sore trouble with Thor if they could not help him. Now
Sindri and Brok knew all about Loki perfectly well; they knew all
about his mischievous ways and the evil he so often wrought, but as
they liked Thor and Sib they were willing to give the help which was
asked of them. Thus without more ado, for these dwarfs never wasted
their words, Sindri and Brok began their work.

Huge blocks of earth-brown stone were cast into the furnace until they
were in a white heat, when drop by drop red gold trickled from them