„Das Geheimnis von Exnihilo“ (The Secret of Exnihilo)

Mystery novel, band 1
212 pages
published by Monsenstein und Vannerdat in 2004

„Verschwörung in Garthaca“ (Conspiracy in Garthaca)

Mystery novel, band 2
(sequel of The Secret of Exnihilo)
316 pages
published by Monsenstein und Vannerdat in March 2011