Aym is a Vestige described in the 3rd edition Tome of Magic. She is known as Queen Avarice. She is said to have been the greediest dwarf who ever lived, who allowed her avarice to bring down the empire she ruled. Her intense greed eventually killed her, and as she died she cursed Moradin, and Moradin made her a Vestige.
Source: 3e Tome of Magic