Three Thrillers. One Elite Kill Team. No Rules. No Mercy.

When diplomacy fails and politics gets messy, Germany calls in Department 89 — a black ops unit that doesn’t officially exist. Led by Major Sophie Decker, they take on the jobs no one else can. Covert hits. Rogue missions. Enemies that don’t play fair.

Decker’s team fights in the shadows, striking first and leaving nothing but silence behind. In these three high-octane thrillers, they go head-to-head with war criminals, assassins, and traitors within the system itself. Justice isn’t served. It’s executed.

Three brutal missions. One unstoppable heroine. Download the boxset and get ready to burn through the pages.

Praise for the Department 89 series

★★★★★ "A thrill ride from start to finish"
★★★★★ "The books riveted me to my chair from beginning to end. The tension keeps ratcheting up every page-turn until the very satisfying end."
★★★★★ "Well written exciting books."
★★★★★ "Fast paced, well crafted, this is a great read."
★★★★★ "A wonderfully crafted action-packed story with twists and turns that keep you on the edge of your seat right to the last page."
★★★★★ “This whole series is a delight. I had to rush back to Amazon and buy up some more of O'Neill's books.”
★★★★★ “Exceptionally well written, a pleasure to read and highly recommended to anyone looking for good reading.”
★★★★★ “It's not often that I am so enthralled with a story that I read the entire book nonstop in one sitting, but it happened here.”
★★★★★ “Totally engrossing. Great read. All Dept 89 books are thrilling and non stop action. Sophie Decker is the best.”
★★★★★ "Amazingly well put together yarns that are blisteringly fast paced & very hard to put down once started.”