Beschreibung
A kidnapping. A map. A lost u-boat. There is something fishy going on in Paris. The kidnapping of journalist Pierre Martin seems to be connected to a marine expedition to the island kingdom Sitomeyang on the other side of the globe. Clues point to the mysterious organisation The Octopus, whose tentacles reaches everywhere. Only a band of intrepid troubleshooters can find out how all of this is connected and solve the U-Boat Mystery. The PDF version of The U-Boat Mystery is included and can be retrieved by a unique code included inside the book.
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