The Midnight Sacrament — Out Now

Zachery Clark
Dark thrillers.
Mayhem Universe.

Seven books. Cold cases, courtrooms, conspiracies, and one standalone about a mind in pieces. Start with the novels tab. Signed copies and merch are in the shop links.

Start here

Mayhem at Midnight

Cold cases. Unsolved murders tied to places. Corruption and seedy bars in the background.

Newest

The Midnight Sacrament

The prequel. Allie, Harper, and Tony Li in the 1960s. The case that starts the Mayhem line.

Podcast

Mayhem Universe with Zachery

Spoiler-free talk about the books and the fake crimes behind them.

Novels

Mayhem Series

Mayhem Universe

Mayhem at Midnight

Cold cases and unsolved murders tied to locations. Each killer is bespoke. Each place keeps a secret.

Mayhem Universe

Built From Her Bones

Damon returns to crime scenes as an adult. Detail is how he holds control. The past does not stay buried.

Mayhem Universe

The Advocate's Hunger

Baltimore. Lawyer Ellie Keene. An erotic thriller set in and around the courtroom.

Prequel — Out now

The Midnight Sacrament

The prequel to the Mayhem books. Allie is the anchor. Li watches, copies, and closes in.

Zeke and Liz Series

Zeke & Liz

The Misadventures of Zeke and Liz: The ARG Bureau

Zeke and Liz are best friends. A game-like case pulls them into a real conspiracy.

Zeke & Liz

The Misadventures of Zeke and Liz: The Denver Protocol

Zeke and Liz in Denver. A wider conspiracy. Same friendship, higher stakes.

Side Adventures

Standalone

Patchwork Chronicles of the Mind

A standalone. A mind in pieces, stitched back together piece by piece.

Reader Reviews

Ratings from readers on Goodreads and Amazon, rotating one at a time.

Cover of Mayhem at Midnight

Mayhem at Midnight

Terisa rated this book 5 stars on Goodreads.

Goodreads review
1 / 8

Reader names and star ratings above are from reviews already left on Goodreads and Amazon. Read the full reviews, and leave your own, on each book's Goodreads and Amazon pages — find them through the shop and Linktree links on this site.

Photo of Zachery Clark in a light blue shirt

Zachery Clark writes the kind of psychological thrillers that make readers glance over their shoulders, question their neighbors, and reconsider the reliability of their own memories. A retired Army veteran with more than two decades of service, he brings a tactical precision to his storytelling—every clue placed with intent, every twist sharpened to a point, every character one bad day away from unraveling.

His fascination with the written word began early, when he rewrote entire novels into short stories he proudly handed to his mother, blissfully unaware that he was already practicing narrative subversion. Today, Clark blends noir atmosphere, metafictional sleight of hand, and dark humor to craft stories where perception is a weapon and truth is a moving target.

Off the page, Clark holds three degrees, which he swears are useful even if most of his research now involves staring into the abyss of a computer screen until the abyss politely asks him to blink. When he's not writing, he can be found outside pretending to enjoy the weather, or inside pretending he's not about to play video games for 'just ten minutes.'

He is a devoted father of three, a Lego enthusiast, and a firm believer that dark humor is a survival skill.

Merch

Printful storefront

Mayhem Universe Store

Shirts, mugs, stickers, and book merch. Printful prints and ships each order.

Bookstore

Bookstore

Books and shop items sold through Square. Stock and editions are listed there.

In the Mayhem Universe Store

A rotating look at what the store sells — stickers, shirts, hoodies, mugs, hats, and more.

Stitched Together, Mostly Stable — Patchwork Chronicles of the Mind Sticker

Stitched Together, Mostly Stable — Patchwork Chronicles of the Mind Sticker

From $3.50

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Newsletter

The Mayhem Dispatch is the author newsletter. It goes out monthly. Nothing is published without the author's approval.

What is in it

New books, signings, audiobooks, and reader reviews. Plain updates, once a month.

Signings

Next listed signing is in Fredericksburg, Virginia on Saturday, November 21, 2026. Venue is 7004 Salem Fields Blvd.

Meet the Team

Author and Characters

Real person — Author

Zachery Clark

Author of the Mayhem Universe books and the Zeke & Liz books. He believes he writes the novels.

Characters — In the books

Zeke & Liz

Characters, not real people. Best friends in The ARG Bureau and The Denver Protocol. They also host Conspiracies & Caffeine in character.

Marketing

Real person — Marketing Director

Robin McDonough

Robin Reads Media. A badass marketing director who loves indie authors and reviews their books. She handles promo material for the Mayhem books and forwards signing and festival opportunities.

The Narrators

Real person — Narrator

Megan Stanton

Narrator of The Advocate's Hunger audiobook. She gives Ellie Keene her voice.

Real person — Narrator

Amelia Spencer-Kelley

Narrator of the Patchwork Chronicles of the Mind audiobook. She trained at Ireland's National Theatre Conservatory and was part of a professional improv troupe, with a wide range of accents and voices.

Real person — Narrator

Mike Garica

Narrator of The Misadventures of Zeke and Liz: The ARG Bureau audiobook, live now on Spotify.