Appearance and Character
Amabel is described as a "fierce old woman".
A Clash of Kings
When Arya Stark is brought to Harrenhal by Ser Gregor Clegane's men together with other prisoners, Goodwife Amabel and Goodwife Harra supervise the process of their cleaning in the bathhouse and give the captives their assignments. When Arya lies to the two women and says her name is Weasel, Amabel states the name is appropriate for her. She orders Arya's hair to be cut and assigns Arya to the kitchens. When Arya protests, Amabel suggests sending her to the Wailing Tower instead, where she has to work for the understeward Weese. Harra agrees with this suggestion.
When Weese's body is found, Goodwife Amabel is among the bystanders. When someone suggests that Harrenhal is cursed, Amabel replies that it is the influence of Black Harren's ghost. She claims that she will not sleep another night in the castle.
After Lord Tywin Lannister departs Harrenhal, the Brave Companions defect during the fall of Harrenhal to northmen. Many of Harrenhal's servants from Shella Whent's time are executed or otherwise punished for having collaborated with the Lannisters. Amabel is distraught when Harra is executed. One day, she grasps Arya, accusing her of being responsible for what has befallen former members of Lady Whent's household, as Arya organized the release of the northmen who then seized the castle for Lord Roose Bolton. She alludes to the victory of the Lannisters in the Battle of the Blackwater and proposes that Lord Tywin will take Harrenhal again, at which time all those who serve Lord Bolton will be punished, Arya in particular, and promises that she intends to torture Arya herself when the time comes. Arya breaks away from her grasp and threatens to kill her if she ever touches her again. However, Amabel replies that Arya is wrong if she believes that the Bolton sigil on her clothing will protect her forever. Arya knows that Amabel would be executed if she reports her comments to Lord Bolton, but she decides not to do it.
A Storm of Swords
Amabel is told by Lord Bolton to look after Brienne of Tarth, who has arrived at Harrenhal with Ser Jaime Lannister in the captivity of the Brave Companions. Roose leaves Harrenhal to Vargo Hoat when he departs the castle. Gregor leads the capture of Harrenhal from Vargo.
A Feast for Crows
On his way to lifting the siege of Riverrun, Jaime returns to Harrenhal and puts the castle back to order. Ben Blackthumb, Pia, and a cook are the only servants from Shella Whent's time who are still around. Amabel's fate is unknown.