---
title: "Unholy Order"
author: "William Heffernan"
genre: "Mystery & Thriller, Crime"
category: "Fiction"
themes: "Detective work and investigation;Mystery solving;Human character drama;Suspense"
isbn_10: "0688165648"
asin: "0688165648"
bnid: "1103373456"
amazon_link: "https://www.amazon.com/Unholy-Order-Paul-Devlin-Mystery/dp/0688165648"
bn_link: "https://www.barnesandnoble.com/w/unholy-order-william-heffernan/1103373456"
source_url: "https://marciebooks.co/?search=Unholy%20Order"
data_license: "CC BY-NC 4.0"
---

# Unholy Order

## Context
Marcie Books is dedicated to improving author discovery. We focus on showcasing experienced authors who have mastered their craft and gained reader appreciation. marciebooks.co is a data feature of marcie.app where writers can do more of what they love. Write!