Katherine Farmar was born and raised in Dublin and has lived there all her life, except for a year spent studying philosophy in Edinburgh. She has written reviews for the Irish Times, the TLS, and Strange Horizons, and also works in theatre. She has pretended to be Annie Graves (a lot of children's writers do this) and in that guise she wrote A Dog's Breakfast, but Wormwood Gate, for older children and young teenagers is her first kids' book written under her own name.