In Remembrance of Andrew Pyper
Andrew Pyper, the acclaimed author of ten novels, including LOST GIRLS, THE DEMONOLOGIST, and most recently WILLIAM and the forthcoming EXILES (both written under the pseudonym Mason Coile), has passed away at the age of fifty-six due to complications from cancer.
Pyper was beloved throughout the industry in the US and in Canada, and heartfelt remembrances celebrate his selflessness, loyalty, and support for fellow authors and publishing colleagues. Daphne Durham, Executive Editor at G.P. Putnam’s Sons, remarked, “Andrew was an inventive, surprising, and profoundly collaborative writer, who clearly loved telling stories. Everyone loved working with him because he was such a pro, but he was also a delightful, warm, funny person. We will all miss him so.”
Pyper’s agent, Kirby Kim of Janklow & Nesbit Associates, shared that Andrew, his client and friend, “laughed easily and made you laugh,” and “had the rare ability to be able to both scare the lights out of you and move you emotionally.”
In WILLIAM, Pyper reaffirmed his status as a master of the smart horror genre, this time under the pseudonym Mason Coile. An instant fan- and rep-favorite upon its publication last September and an Indie Next Pick, WILLIAM garnered extensive media coverage from various outlets, including glowing reviews in the New York Times Book Review, People Magazine, and the Minneapolis Star Tribune, and was prominently featured in numerous book roundups in Parade, People Magazine, and USA Today. Putnam is set to publish EXILES, Pyper’s second book under the Mason Coile pseudonym, in Fall 2025.
Throughout his distinguished career, Pyper received numerous prestigious awards, including the Arthur Ellis Award for his debut novel LOST GIRLS and the International Thriller Writers Award for THE DEMONOLOGIST. LOST GIRLS was also a New York Times bestseller and a Notable Book of the Year. WILLIAM was named a Best Book of 2024 by national outlets such as People and Parade. Andrew is survived by his wife, Heidi Rittenhouse, and their children, Maude and Ford. Donations in his memory can be made to Tree Canada.