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Publication Order of O’Malley Books
| The Negotiator | (1999) | Hardcover Paperback Kindle |
| Danger in the Shadows | (1999) | Hardcover Paperback Kindle |
| The Guardian | (2001) | Hardcover Paperback Kindle |
| The Truth Seeker | (2001) | Hardcover Paperback Kindle |
| The Protector | (2001) | Hardcover Paperback Kindle |
| The Healer | (2002) | Hardcover Paperback Kindle |
| The Rescuer | (2003) | Hardcover Paperback Kindle |
| Jennifer | (2010) | Hardcover Paperback Kindle |
| Danger in the Shadows is a prequel novel to the novel The Negotiator. | ||