In 1334, a group of Avariel (winged elves) stopped briefly in Beldin. They said that they had come from the Crags, and were headed north. No one dared ask any more questions. Some say that they pledged some sort of help to the King of Beldin if he ever were to ask for it.
On their way north, they flew over Astrid Rock. There they saw signs of suspicious activity (they had been warned of the Aurilites in Beldin), and reported as much to Siluvan.
There are rumors that the Avariel eventually settled on a mountain far to the north of the Karen valley, at a place they called Aerenlur. Some adventurers even claimed to have seen or visited the place during the Third Winter War, but nothing has been heard of them for years.