Holger Nilsson is forced on a raging treasure hunt to find the seven keys to his world-famous relative Mary Diana Graaf's mythical laboratory. To help him, he has the inventor Mortensen and Mary Diana's GPS computer with pre-recorded riddles and clues written in verse. But what kind of mysterious and malevolent figure lurks in the background?
Last episode: 2023-06-26
First episode: 2011-01-18
Type: Scripted
Rating: 9.667
Runtime: unknown
Not available in Sweden
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