Kiersten Modglin is an American author known for her fast-paced psychological thrillers and domestic suspense novels. She began her writing career in the late 2010s and quickly built a large readership through self-publishing, gaining popularity for her twist-filled plots and addictive storytelling style. Modglin’s books often focus on relationships, secrets, and unexpected betrayals, keeping readers engaged with constant tension and surprising turns.

She has written numerous novels, including The Arrangement, The Missing, and Not My Daughter, many of which have become bestsellers in the thriller and suspense categories online. Known for her prolific output and strong connection with readers, Modglin has established herself as a prominent voice in contemporary commercial fiction, particularly within the psychological thriller genre.