I know of the place.

It is called Gundbiorn's Reef and it is beyond the world." All this befell in Biorn's eleventh summer.

The winter which followed brought ill luck to Hightown and notably to Ironbeard the King.

For in the autumn the Queen, that gentle lady, fell sick, and, though leeches were sought for far and near, and spells and runes were prepared by all who had skill of them, her life ebbed fast and ere Yule she was laid in the Howe of the Dead.

The loss of her made Thorwald grimmer and more silent than before, and there was no feasting at the Yule high-tide and but little at the spring merry-making.