Honor Cargill began writing when she was about sixteen, co-authoring the funny teen series, Waiting for Callback (Simon & Schuster). Honor read Classical Archaeology and Ancient History at Oxford and studied masters in the History of Art. She enjoys researching party scenes and also writes non-fiction history.

Perdita Cargill spent years working as a commercial barrister before she finally turned to writing. Bizarrely for a pessimistic Scot, she loves to write funny books. She is the co-author with Honor Cargill of the Waiting for Callback series (Simon & Schuster) and lives in London.

Their most recent novel is Diary of an Accidental Witch, the first in a middle-grade series described as "a fresh take on the witch school genre".