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Publication Order of Intrepid Books
| Defender | (2012) | Hardcover  Paperback  Kindle |
| Hunter | (2012) | Hardcover  Paperback  Kindle |
| Avenger | (2015) | Hardcover  Paperback  Kindle |
| Helldiver | (2015) | Hardcover  Paperback  Kindle |
| Ranger | (2017) | Hardcover  Paperback  Kindle |