In the novel The Moving Finger, Antoine is Joanna Burton's hairdresser in London. His salon is located around the corner from Mary Grey's boutique. Jerry Burton takes Megan Hunter to London and wants to give her a complete makeover. As he has an appointment at Harley Street, he leaves Megan in the hands of Mary Grey who is Joanna's dressmaker. Mary says she will see to Megan having her hair done at Antoine's.