Catherine Doyle grew up in the West of Ireland. She holds a BA in Psychology and an MA in Publishing.
Her award-winning and bestselling middle grade début, The Storm Keeper's Island is set on the magical island of Arranmore, where her grandparents grew up. The sequel, The Lost Tide Warriors, was published in July 2019, with the third to follow in March 2021. Catherine's modern re-imagining of Charles Dickens' A Christmas Carol, titled The Miracle on Ebenezer Street, was published by Puffin books in October 2020. She is also the author of the Young Adult Blood for Blood trilogy (Vendetta, Inferno and Mafiosa), which is often described as Romeo and Juliet meets the Godfather.