Address Unknown
Mercury Carter Thrillers Book #3 By: Andrew Welsh-Huggins
ISBN: 9781613168608
Publisher: Penzler Publishers The Mysterious Press
Publication Date: 03/30/2027
Format: Hardcover
My Rating: TBR (ARC)
MAR 2027 MUST-READ BOOKS In this new Mercury Carter thriller, the self-styled freelance mailman crisscrosses the Southwest as he juggles his latest delivery with his search for his father’s killer and for a missing fitness fanatic.
Mercury Carter’s current assignment seems innocuous enough: deliver a JurassiCat—a wildly popular and sought-after toy—to a three-year-old girl in Los Angeles, courtesy of her doting grandparents. The trip out west also gives Carter the chance to detour through Phoenix, Arizona, where the man who orchestrated the death of Carter’s father several years ago was recently sighted. As often happens with Carter’s assignments, however, things immediately go wrong on both counts and when he finally makes it to LA he finds the little girl and her parents held hostage by armed thugs.
But Carter has never missed a delivery, and he isn’t about to start now. While the thugs ransack the home of Kyle and Gwynyth Clemens, Carter finds an unexpected ally in a young man who had come to the house looking for information about his missing half-brother. As Carter struggles to save the family and the young man from both gunfire and the flames of encroaching wildfires, he finds himself dragged into a complex criminal conspiracy. In a pursuit that takes him first to Las Vegas and then northern Arizona, Carter chases down the thugs who disrupted his delivery and follows clues to a rash of disappearances and the cultish wellness community that seems to connect them.
In Address Unknown, Andrew Welsh-Huggins once again delivers the high-stakes action, edge-of-your-seat drama, and quick wit that readers have come to expect from the Mercury Carter series.
Mercury Carter Series
THE MAILMAN #1
Praise
“Address Unknown by Andrew Welsh-Huggins, is a fast, fun dive into modern medical weirdness that will keep you riveted for the entire ride. Mercury Carter, freelance mailman, is the most original thriller protagonist I've encountered in years!” —Nick Petrie, author of Shadow Game
“Mercury Carter is a ‘freelance courier’ like no other, and in Address Unknown, the delivery route takes him through a danger zone of criminal conspiracies and ever escalating threats. It’s a wild ride with surprisingly personal stakes. If you dig action and intrigue with a bit of smart-assery sprinkled in, you’ll blast through this outing from Andrew Welsh-Huggins. A great smooth read from a true pro.” —Gregg Hurwitz, New York Times bestselling author of the Orphan X series
About the Author
Andrew Welsh-Huggins is the author of the Barry Award-nominated Mercury Carter thriller series; the Shamus Award-nominated Andy Hayes private eye series; and the stand-alone crime novel The End of the Road. Andrew also edited the anthology Columbus Noir, and his short stories have appeared in multiple magazines and anthologies, including The Best Mystery Stories of the Year (2021, 2024, and 2025) and The Best Private Eye Stories of the Year 2025 and 2026 (forthcoming). His nonfiction title, No Winners Here Tonight, is the definitive history of the death penalty in Ohio.
