Mysterious holes in the ground appear during the night, causing Oliver's bicycle to be destroyed. Who made these holes and why? The child detectives Tiril and Oliver will have to be as smart as Sherlock Holmes to find out.
Operasjon Mørkemann (2018) is currently not available on any services.
Eldar Vågan , Pål Sverre Hagen , Øystein Røger , Finn Schau , Lise Fjeldstad
Grethe Bøe-Waal
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