Where'd you go, Bernadette

When Bee aces her report card she claims her reward, which is a trip to Antarctica, but her mother, Bernadette, disappears due to her intensifying allergy to Seattle and people in general, which has made her so agoraphobic that a virtual assistant in India now runs her most basic errands and Bee uses emails, invoices, school memos, private correspondence, and other evidence to try and understand why her mother has left.