Adria is a human who served the Howe family at Vigil's Keep. According to Nathaniel Howe, she was like a mother to him.
Involvement
Upon finding a letter from her on an injured mabari in the Keep's basement, the Warden-Commander learns that Adria has taken refuge deep within the Keep; reading the letter initiates the side quest Adria's Plight.
When she is discovered, the Warden-Commander finds that she has been corrupted by the darkspawn taint and has turned into a ghoul. She must be killed to end her suffering, regardless of Nathaniel's protests.