Adrian Mole Doreen Slater, whom Adrian privately refers to as "Stick Insect". Brett makes a reappearance in the later books as a successful yet unpleasant businessman who loses his fortune during the credit crunch. Doreen is killed off in "Prostrate Years". Pauline temporarily marries her younger lodger Martin Muffet, who eventually leaves her for Adrian's girlfriend Bianca Dartington, giving Adrian and his mother a shared heartbreak. Later, George and Pauline effect a partner swap with Ivan and Tania Braithwaite (parents of Pandora), only to reunite after Ivan's untimely death. Adrian's half-sister, Rosie Germaine Mole (after feminist Germaine Greer), grows up to be
Adrian Mole: The Prostrate Years that he might retire and leave the shop to Adrian. He is occasionally absent from work due to ill-health and eventually spends a short stay in hospital with back trouble, where he becomes somewhat addicted to reality TV programmes. Towards the end of the book, Mr Carlton-Hayes is forced to close the bookshop due to lack of finances. Brett is the illegitimate son of George Mole and Doreen Slater. Initially a successful businessman, he visits Adrian's parents following Doreen's sudden death and is frequently arrogant and degrading towards Adrian and Bernard. He later loses his fortune and hangs around "The