Mrs. Bass is Klaus Baudelaire's teacher in "The Austere Academy", obsessed with measuring in metric and all of her lessons are on measuring certain items. Mrs. Bass is described as having long, messy hair that vaguely made her resemble a gorilla. She and Mr. Remora only agree that Violet and Klaus are good students after their final examination that would determine their expulsion from Prufrock Preparatory. Prior to this, however, they were under the impression that Violet and Klaus were the two worst students in the history of the school. Mrs. Bass at this occasion states that she dislikes Carmelita Spats.