. "The Cluecraft 3000"@en . . . "In The Black Book of Buried Secrets it is revealed that the Ekaterina's invented it and it is the only submarine in the world which can withstand 30,000 cusec's of water.Although it's purpose was to find an lost Tomas clue."@en . . . "In The Black Book of Buried Secrets it is revealed that the Ekaterina's invented it and it is the only submarine in the world which can withstand 30,000 cusec's of water.Although it's purpose was to find an lost Tomas clue."@en . . .