Caelainn Bradley is a best-selling author, essayist, and short story writer. She publishes psychological thrillers under the pen name Rachel Ryan. Her debut novel, Hidden Lies (Piatkus; Little, Brown) became an instant Irish Times best seller and was internationally published under the title The Woman Outside My Door (Simon&Schuster.) The Irish Independent called her "one to watch," Erin Kelly described her as "a bright new voice in psychological thrillers" and the Irish Times called Hidden Lies "a spare, stylish, well-structured piece of work...Ryan skilfully ramps up the tension until the atmosphere is tight as a drum." Her debut was also praised by the heavyweights of Irish crime fiction, who described it as "a rollercoaster of a read" (Liz Nugent) and "an eerie and unsettling thriller that twists relentlessly in different directions" (Catherine Ryan Howard.) Bradley also publishes literary fiction and essays under her own name, and has been featured in publications such as the Dublin Review, Banshee and Narrative magazine. She studied English at Maynooth University, where she completed a dissertation in creative writing.