Karen M. McManus

Karen M. McManus (born 1969) is an American author of young adult fiction. She is most known for her first novel, One of Us Is Lying, which spent more than five years on the The New York Times Best Seller list, as well as its sequels One of Us Is Next and One of Us Is Back, and the stand-alone novel Two Can Keep a Secret.

Early life and education
McManus discovered an interest for writing when she was eight years old and was assigned to write a story in school. She attended the College of the Holy Cross, earning a bachelor’s degree in English literature, then attended Northeastern University, where she received a Master of Arts (M.A.) in journalism.

One of Us is Lying (2017)
It received a starred review from Publishers Weekly. One of Us Is Lying was optioned as a pilot by NBC and the television adaption premiered on Peacock in October 2021.

One of Us is Next (2020)
Its sequel, One of Us Is Next, received a starred review from Publishers Weekly.

One of Us Is Back (2023)
One of Us Is Back is the threequel from One of Us is Lying. It is the last Part of the trilogy.

Two Can Keep a Secret (2019)
For Two Can Keep a Secret, which was McManus’ first standalone novel outside of the One of Us Is Lying trilogy, Kirkus Reviews gave it a starred review and named it one of the best books of 2019.

The Cousins (2020)
The Cousins, McManus's second standalone novel and fourth novel overall, was a #1 New York Times bestseller and an Edgar Award Nominee.

Personal life
She lives in Cambridge, Massachusetts. She rereads The Secret History by Donna Tartt every year.

One of Us Is Lying trilogy

 * 1) One of Us Is Lying (Delacorte Press, 2017)
 * 2) One of Us Is Next (Delacorte Press, 2020)
 * 3) One of Us Is Back (Delacorte Press, 2023)

Standalone novels

 * Two Can Keep a Secret (Delacorte Press, 2019)
 * The Cousins (Delacorte Press, 2020)
 * You'll Be the Death of Me (November 2021)
 * Nothing More To Tell (Random House, 30 August 2022)
 * Marple: Twelve New Stories (contributor to continuation collection authorised for Miss Marple (2022))