* The Last Viking: Eric Bloodaxe and the Fall of the Viking Empire (2014)
* The King's Warrior (2015)
* Blood-Bound (2016)
* The Sword of Kings (2018)
* The Shield of Faith (2019)
* The Hammer of Thor (2020)
Short stories
* "Eric Bloodaxe and the Werewolf of Nidaros" (2014)
* "The Last Viking: A Tale of Eric Bloodaxe" (2014)
* "The King's Warrior: A Tale of Einar, the One-Eyed" (2015)
* "Blood-Bound: A Tale of Harald Fairhair" (2016)
* "The Sword of Kings: A Tale of Olaf Tryggvason" (2018)
* "The Shield of Faith: A Tale of Svein Forkbeard" (2019)
* "The Hammer of Thor: A Tale of Cnut the Great" (2020)
Other works
* The Last Viking: Eric Bloodaxe and the Fall of the Viking Empire: A Study in Leadership, Strategy, and Governance (2014)
* The King's Warrior: Einar, the One-Eyed, and the Battle of Brunanburh (2015)
* Blood-Bound: The Story of Harald Fairhair, Uniter of Norway (2016)
* The Sword of Kings: The Story of Olaf Tryggvason, King of Norway (2018)
* The Shield of Faith: The Story of Svein Forkbeard, King of Denmark (2019)
* The Hammer of Thor: The Story of Cnut the Great, King of England and Denmark (2020)