Product information "Die drei ??? Die sieben Tore"
Who is this strange Mr Carter who lives in a dusty old castle and looks like a half-starved bird? His request to the three detectives is also strange: "Find the hiding place at the seven gates". What initially seemed to be a harmless task turns out to be a most dangerous adventure. The three ??? are forced to open doors that they should better have left unopened. Behind them they find things they would have preferred not to find.