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The Magdalene Deception

The very foundations of Christianity are at stake in this intelligent thriller set in the Vatican Secret Archives. Join Father Michael Dominic and investigative reporter Hana Sinclair, along with a trio of valiant Swiss Guards, as they try to prevent an explosive manuscript written by Mary Magdalene from falling into the wrong hands—including those in the highest ranks of the Vatican.

Reviews for "The Magdalene Deception"

“In this gripping conspiracy thriller, McAvoy applies his love of ancient manuscripts and historical documents to weave a story that spans from the early days of the Catholic Church to the present . . . Welcome historical context is sprinkled throughout the novel, which includes vivid descriptions of real-world celebrations, history-inspired prophecy, ancient texts . . . epic poems, and newspaper clippings. Every detail has been carefully curated to immerse the reader in the story, and McAvoy makes sure to leave breathing room for readers to absorb each new piece of information. The rich settings, elegantly described through architecture and antiques, anchor the reader in time and place. Consistent pacing complements the narrative . . . This story brims with intrigue, danger, and the fight for a religion’s soul. Steeped in Vatican and WWII intrigue, this history-rich thriller will appeal to readers eager to unravel conspiracies and explore the past.” — PUBLISHERS WEEKLY/BOOKLIFE


Gary McAvoy’s steady, Vatican-set thriller, The Magdalene Deception is an impassioned thriller that’s directed by Church mysteries. Packed with details on the nature of archival work, it’s also a crystalline portrait of persistence.”


“McAvoy’s novel is fast paced and well-plotted. [With an] alluring setting and appealing premise… McAvoy’s prose is clear, direct, and propels the novel along quickly. It shines when describing the novel’s locations, including the atmosphere inside the Vatican…. The Magdalene Deception is an entertaining and original Vatican thriller with an engaging hero, vivid setting, and suspenseful circumstances.” — THE BOOKLIFE PRIZE 2020 


“This is one of those books you start reading in the evening and decide to skip work the next day so you can read all night. This a masterful blend of real history and what-if present day. I found myself several times putting down the book so I could do an online search just to confirm what the author, Gary McAvoy, wrote could even be true. And boy did I get a history lesson about both the Inquisition and World War II. McAvoy is obviously a student of history and has skillfully woven a tale that began a thousand years ago and continues in this millennium. His attention to detail and superb writing (an excellent command of the language) vividly paints a picture that puts your own imagination into overdrive.” — G. MCDONALD, Amazon Reviewer  – 5 stars *****

“Exquisitely written and highly entertaining, The Magdalene Deception is an investigative mystery in a very similar vein to The DaVinci Code…The real quality to this book is the author himself — the writing is superb.  There is an outstanding attention to detail in McAvoy, and the setpieces he weaves are vivid, colourful and authentic; this author treats his audience as intelligent and attentive, and this is always hugely beneficial to any writer.  As well as being an evidently well-educated historian, McAvoy also knows his stuff in terms of modern-day information networking and the technology in present day use alongside ancient practices and customs…” — MATT MCAVOY BOOK REVIEWS (UK) – 4.5 Stars ***** (No relation to the author)

“A great thriller that weaves numerous storylines together effectively. Recommended to those who love a good thriller with historical implications, as well as the reader who enjoys Vatican and Catholic politics. McAvoy creates a wonderful story that never stops building throughout. Juggling modern and ancient Church issues, McAvoy does not lose his reader at any point, as his writing is so clear that the attentive reader will likely want more.” — MATT PECHY, Reedsy Discovery  – 4 stars ****

“This book was absolutely fantastic. The subject matter was clearly well-researched, and the characters compelling, and I like that the author didn’t take the “easy way out” as the characters developed their chemistry. The first couple of chapters were slower paced than what you’d find in a typical thriller, but I don’t count that as a bad thing. It was clear the author was taking time to shape what the reader needed to know. A slow burn burns just as hot. The action picked up and I kept turning the pages until it was over and I was wanting so much more. There was a hint that the story will continue with the characters, and if that’s the case, I will follow along. It’s hard not to compare stories like this with those that became so popular, but I found I liked this book far better than Dan Brown’s DaVinci Code.” — KIM CHEEL, NetGalley Reviewer  – 4 stars ****

“If, like me, you find the concept of secret, mysterious Vatican archives and a long tumultuous religious history, mixed with strong characters and moral dilemmas interesting, then this books is for you… For me this is the book’s greatest strength, the time spent developing the characters whilst also letting me go on the journey with them in a way which made it very hard for me to stop reading!” — SANTINO DECARO, NetGalley Reviewer – 4 stars ****


And Every Word Is True

Newfound evidence reveals Truman Capote's "In Cold Blood" is not the end of the story—and the legal battle Kansas fought to suppress its publication.

By Gary McAvoy
With a Foreword and Personal Stories by Ronald R. Nye, son of Harold R. Nye, Former Director of the Kansas Bureau of Investigation

Published March 2019.

May 2020

And Every Word Is True
Named as Finalist in the Next Generation Indie Book Awards.


“McAvoy writes in a clear-eyed, no nonsense prose style ideally suited to the true crime genre. The author capably and meticulously details information in a manner that will keep readers engaged. By combining elements of true crime and memoir, McAvoy offers an immersive account of an infamous murder case. Most unusually, the author raises compelling questions about the veracity of Truman Capote's accounts and the role that In Cold Blood played in influencing public opinion."

✏️ The BookLife Prize

“McAvoy’s disclosures are provocative, if not earthshaking; most notably, McAvoy echoes Capote’s potent prose style and deep humanizing of his subjects, while broadening the conversation about truth, intention, and narrative representation.”

Publishers Weekly/BookLife (Full review below and at Publishers Weekly)

"What a fascinating book! I read it with interest and much admiration… The author has done a great service in highlighting the limitations of journalism in ever trying to pin down what really happened, and all fans of 'In Cold Blood' must surely appreciate the way in which McAvoy tied together so many different and previously hidden aspects of the case… Completely engrossing, so lucidly written and so interesting that I read it in a single session, pausing only to eat!"

✏️ David Robinson, former Books Editor, The Scotsman (UK) and author of In Cold Ink

“'And Every Word Is True' kept me absolutely spellbound. In painstaking detail, McAvoy has peeled back the underlying layers of a story we thought we already knew. I couldn’t put it down!”

✏️ Michael Ohoven, Oscar-nominated producer of the 2005 film Capote starring Philip Seymour Hoffman; CEO of Infinity Media

'What if all you thought you knew about the 1959 Kansas Clutter family murder case from Truman Capote’s famed In Cold Blood wasn’t entirely true? In Cold Blood was a first in true crime writing and remains a bestseller more than 50 years after it was first published. Very much in a sequel rather than a critique, And Every Word Is True by Gary McAvoy breaks open the Clutter murder case and the investigations that followed revealing some startling secrets. Using the personal papers and notebooks of Harold R. Nye, one of the senior investigators on the case, McAvoy and Nye’s son Ronald Nye, have been on a painstaking journey. Sued by the State of Kansas in a desperate bid to seize the materials and prevent their publication served to highlight the KBI had something to hide. And Every Word Is True is the result of six years of legal battle and diligent research to reveal new revelations about the motives behind these brutal murders, who may have been involved and the pressure and influence the KBI had over Capote and the story he told in In Cold Blood. Well-written and expertly presented, And Every Word Is True is a must read for any true crime fan. The story of the Clutter family murders is far from complete.”

✏️ Fiona Guy, Crime Traveller 5-Star Review

"'And Every Word is True' will take you back to that night in Holcomb, Kansas, November of 1959, when two hard-luck men slaughtered an entire family in their farmhouse for a few meager dollars—changing forever our definitions of fear, safety, and how we sleep at night. Now, Gary McAvoy's scrupulously researched book shines new light on some of the conclusions drawn by the Kansas Bureau of Investigation—and later endorsed by Truman Capote's classic 'In Cold Blood.' McAvoy has done a great job of bringing to life a history that is still alive and still terrifying, and now, perhaps, even richer."

✏️ T. Jefferson Parker, Edgar Award-winning author of Silent Joe, California Girl, and The Room of White Fire

“This book turns the Clutter murder case inside out! Truly an eye-opener into a part of my father’s life where I really thought I had known all of the salient details. This was more than just a ‘good read’—this was a compelling work of factual art.”

✏️ Dean Rohleder, Son of Garden City Assistant Chief of Police Richard Rohleder, the acknowledged “hero” of the Clutter murder investigation

“As deputy sheriff in Garden City at the time, I can say without reservation that Mr. McAvoy has done admirable work here. He has clarified many of the ‘facts’ in Capote’s book, and pulled back the curtain to expose many contradictions in the Clutter investigation.”

✏️ Keith Denchfield, former Deputy Sheriff of Finney County, Kansas, and son-in-law of Undersheriff Wendle & Josephine Meier

"With a passion, tenacity, and respect for facts that would make original investigator Harold Nye proud, Gary McAvoy has joined forces with Nye’s son, Ronald, to challenge the official story of the notorious Clutter family murders, the same version Truman Capote chronicled in his sensational bestseller 'In Cold Blood.' Using a combination of reverence for accuracy, old-fashioned gumshoe gutsiness, and his own considerable writing skills, McAvoy has exhaustively researched, fought for, and produced a book that will keep the reader gripped until the very last word—and this time, all the words are true.”

✏️ Tawni O’Dell, New York Times bestselling author of Back Roads, an Oprah's Book Club selection

“Sure to provoke debate, Gary McAvoy’s book is simultaneously wonderful and unsettling. Criminal justice professionals will find nuggets to be mined as he challenges us to leave our comfort zones. Casual readers of true crime will be spellbound. No matter which “side” you land on, McAvoy’s elegant style is one that even Truman Capote could embrace.”

✏️ Sally J. Keglovits, Supervisory U.S. Probation Officer (retired) and Lecturer in Criminal Justice, DeSales University

“McAvoy was well-placed to spot intriguing inconsistencies in the infamous Clutter murder investigation. His work reminds us to be wise about bias in human narratives, even when they’re beloved classics.”

✏️ Dr. Katherine Ramsland, author of Confession of a Serial Killer: The Untold Story of Dennis Rader, the BTK Killer

"With gripping intensity, 'And Every Word is True' is a page-turning thriller that unravels a fascinating web of deception, one as frightening and disturbing as the infamous crime itself. Revealing fresh evidence collected through a variety of sources—most notably the actual notebooks used by KBI detective Harold Nye as he worked tirelessly to solve the case—McAvoy has uncovered never-before-told information that challenges not only the veracity of Capote’s own retelling of the crime, but of the very legal system that prosecuted the case. Since 'In Cold Blood' is a vital part of the course curriculum I teach, such a classic story wouldn’t be complete without having this book as its companion."

✏️ Fran Libra Koenigsdorf, Honors English teacher of In Cold Blood since 1982, Johnson County, Kansas

"Gary McAvoy has an unbridled passion for literature, history and research, which are all on display in vivid detail in 'And Every Word is True,' his collaboration with Ronald Nye that revisits the story of the Clutter family murders that became Truman Capote's 'In Cold Blood.' This is a fascinating account of previously unpublished material regarding the case, kept hidden from the public, journalists and biographers. For enthusiasts of accounts of true crime and mystery, this is a worthy addition to your library."

✏️ Adriana Trigiani, New York Times bestselling author of Big Stone Gap and Kiss Carlo

"Some books you can’t wait to finish; some books you never want to end. For me, Gary McAvoy’s riveting new book, 'And Every Word is True,' was so intriguing that I did not want it to finish."

✏️ Beth Moroney, Former teacher of Creative Writing and Journalism, and administrator in the Edison NJ Public School District

"In 1966, after reading in Truman Capote's final pages of 'In Cold Blood' that the 'instigator' of the Clutter family murders was now serving a 30-year sentence for bank robbery at the Mississippi State Penitentiary in Parchman, I pursued and got a rare personal interview with Floyd Wells at the prison. Following that interview and a re-study of the Capote book, I figured I knew as much about the Kansas murder case as any other writer. And this assumption, when restricted to Truman Capote's creative fiction, was probably accurate, because we all were referring at the time to the only public record the masses had available. However….

Now we learn (thanks to the indefatigable work of Gary McAvoy and Ron Nye) that Capote may have been somewhat deceptive with his narrative and had not only ignored investigative evidence revealing new motives, but had denied proper credit to those investigators who had exposed it. More than a half century later, Ron Nye had the foresight to salvage and save his father's records revealing the real facts of the case. And now we learn that even the Kansas Bureau of Investigation appears to have been involved in some form of cover-up, highlighting the importance of the truth-seeking, fact-finding mission by McAvoy and Nye in 'And Every Word Is True.' It appears that the KBI caught the culprits but missed the real motive.

For all this, McAvoy and Nye well deserve a '5-Star' review for 'And Every Word Is True.' The book's title is absolutely perfect—once the reader discovers its source. I am delighted to tout their truth-seeking mission to the world, only regretting that the message came so late. Fifty years ago, this book would have outsold Capote's giant bestseller. The details of WHY are revealed inside the book."

✏️ Pat Shannan, Editor, Independent News International

Harvest for Hope: A Guide to Mindful Eating

By Jane Goodall with Gary McAvoy and Gail Hudson Warner Books, 2005

For anyone who's ever wanted to know how to take a stand for a more sustainable world, renowned scientist and bestselling author Jane Goodall delivers an eye-opening call to arms that explores the social and personal significance of what we eat.

In Harvest for Hope, Goodall presents an empowering and far-reaching vision for social and environmental transformation through the way we produce and consume food. With practical, user-friendly chapters—such as "Doing Our Part: Help Farm Animals Live Better Lives," "An Organic Wave Worldwide," and "Eat Local, Eat Seasonal"—and a comprehensive resource guide, readers will discover the dangers behind many of today's foods, along with the extraordinary individual and worldwide benefits of eating mindfully. Harvest for Hope uncovers the choices that support the greater good and will preserve our own health and that of future generations.


"From world-renowned scientist Jane Goodall, as seen in the new National Geographic documentary Jane, comes a provocative look into the ways we can positively impact the world by changing our eating habits. 'One of those rare, truly great books that can change the world.'"

✏️ John Robbins, author of The Food Revolution

"In Harvest for Hope, Jane Goodall convinces us that we should have a new relationship with food, one that is inspiring and delicious, at the same time a preservation of tradition and an act of conservation."

✏️ Alice Waters, author of Ches Panisse Fruit and Chez
Panisse Vegetables

"A lucid, anecdote-filled introduction to the world of food, revealing how our food production affects us and how our choices affect the environment... Consider this book the shopping list for you and your children's future."

✏️ Paul Hawken, author of Ecology of Commerce

Cracking the New Economy

Edited by Gary McAvoy
Washington Software Association, 2000

Cracking the New E-conomy is a book for software entrepreneurs, whether your company is Starting Up, Expanding, or reaching Maturity; it's an incredibly useful book to guide you into twenty-first-century business. You know your specialty, but here you'll find help for succeeding in manufacturing and marketing that specialty.

Advice from some of technology's most knowledgeable marketing, financial, legal, human resources, and sales people for entrepreneurs-- not only in software but in high tech as well, seeking basic business information at all stages of a company from the start-up to the mature company.

Cracking the New E-conomy is a remarkable resource whether you're looking to be the next IPO phenomenon or are simply retooling your company after years in business.


"Cracking the New E-conomy is a handy handbook for software entrepreneurs: comprehensive in coverage and pithy in its content."

✏️ Randall E. Stross, Author of The Wizard of Menlo Park: How Thomas Alva Edison Invented the Modern World

"Start-up stage entrepreneurs or software engineers jumping into today's high-velocity business climate can spend thousands of dollars for consultants and advisors in law, marketing, sales, and global commerce. Tapping into the voices of experience is an alternative."

✏️ Stuart Glascock, CMP's Tech Web

"...Cracking the New E-conomy is a nuts-and-bolts guide to launching a business, from forming a corporation to picking an exit strategy. Written by 68 experts and edited by Gary McAvoy, the book is divided into four sections, starting with a look at the nature of work today in an Internet economy. The remaining sections focus on the needs of startups, expanding companies and mature companies. Chapters cover accounting practices and how to hire and retain good staff."Within these covers you will hear the voices of experience: in law, marketing, finance, sales, intelligence and global commerce," McAvoy said. "Take heed—and succeed."

✏️ Jeanne Lang Jones,

Clutter Murder Files

NOW AVAILABLE! Interactive multi-touch companion edition to And Every Word Is True, featuring original primary source documents prepared by Special Agent Harold Nye, as featured in Truman Capote's book In Cold Blood. Available only for Mac and iPad on Apple Bookstore.

5-Star Reviews on Tour

Crime Traveller UK, April 16, 2019

Reedsy Discovery, March 4, 2019