This is a work of fiction. All of the characters, organizations, and events portrayed in this novel are either products of the author’s imagination or are used fictitiously.
First published in the United States by Minotaur Books, an imprint of St. Martin’s Publishing Group
HEAD CASES. Copyright © 2025 by John McMahon. All rights reserved. For information, address St. Martin’s Publishing Group, 120 Broadway, New York, NY 10271.
Cover design by David Baldeosingh Rotstein
Cover art: box © Aline Sprauel/Arcangel; sticker © Douglas Sacha/Getty Images; fingerprint © Andrey_Kuzmin/Shutterstock
eISBN 9781250348302
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First Edition: 2025