Adventurers, adventurers! John Howe, the famous heroic fantasy illustrator, awaits you to set off on an incredible quest through the Rhine castles. Your objective: find the quartz hidden by an ancient genius, free the fantastic creatures, and open the "Doors of Time"!
Thanks to the mobile application, search for clues in the castles of the Rhine plain and unlock new content.
John Howe is counting on you!