Boardgamegeek https://boardgamegeek.com/boardgame/207682/das-kleine-gespenst-spuk-auf-burg-eulenstein
English - Every night in Das kleine Gespenst: Spuk auf Burg Eulenstein, the little ghost awakes at the witching hour to run through the castle rooms to play. Its favorite game is cannonball bowling — but where did it hide the cannonballs last time? Who can help the little ghosts find them again? Who has been paying attention to which chests hide which cannonballs?