The 13½ Lives of Captain Bluebear: A Novel (The Zamonia Series)
2010
The City of Dreaming Books (The Zamonia Series)
2010
Rumo & Die Wunder im Dunkeln
2023
Die 13 ½ Leben des Käpt'n Blaubär
2013
Rumo & His Miraculous Adventures: A Novel in Two Books (The Zamonia Series)
2010
Die Stadt der Träumenden Bücher
2023