Until the Debt Is Paid: Jan Tommen Investigation, Book 1 (Unabridged)
2014
Broken Glass: A Nik Pohl Thriller, Book 1 (Unabridged)
2019
Vom gleichen Blut: Nik Pohl 2
2019
Was verborgen bleiben sollte: Jan Tommen 5
2017
Die Erinnerung so kalt: Jan Tommen 4
2016
Grave Intent: Jan Tommen Investigation, Book 2 (Unabridged)
2016