Aunt Adrianna is a character in The Testaments.
Aunt Adrianna was a young Aunt in the role of a Pearl Girl, missionaries from Gilead who go abroad to recruit other women.
She visited The Clothes Hand in Toronto with her partner, Aunt Sally, where the legendary Baby Nicole - known as Daisy - lived with her adopted parents Neil and Melanie. Soon afterwards, Aunt Adrianna was found dead in a rented condo, her own silvery belt tied around her neck, which the police identified as a suicide. Aunt Sally went missing shortly afterwards. Sally later meets with Lydia at Ardua Hall, confessing that she killed Adrianna after she tried to attack her, and promptly returned to Gilead. Lydia responds that it was likely due to the debilitating, godless environment of Canada. Gilead's official version of her death is put out, that Mayday agents murdered her.
It is later revealed that Adrianna attacked Sally because Adrianna was actually affiliated with Mayday, and wished to stop the effects of Sally pursuing an investigation into the whereabouts of Baby Nicole.