Baldur's Gate: The Legend of Morningstar

In the northern mountains, the Aerie of the Snow Angels is where the avariels reside. Many outside civilizations assumed their extinction. Others assume that the Gods have retrieved the avariels. Avariels are spoken to be the guardians of the Gods, where they have sworn an oath to protect the Gods from harm. In return, they are to be blessed with the ability to soar the skies. Over the years, every civilization in Faerûn questioned the legitimacy of this myth. Soon, would they see, the fate of Faerûn would lie within Icaria Morningstar.