The Three Investigators Kids, Monsters and the Sea

Justus, Peter and Bob are best friends and detectives! Together, the Three ??? have solved many tricky cases.
Two exciting cases for the Three ??? Kids:

Monster Clouds: Monster clouds over Rocky Beach! The ugly fog faces distract drivers. When even planes are endangered, the Three ??? Kids must quickly investigate.

Secret by the Sea: Justus, Peter and Bob are looking forward to a musical right by the sea. But the mermaid performers are at odds, and the Three ??? Kids have to intervene. Soon they uncover a secret...

Accessibility:
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Manufacturer / Responsible person:
Franckh-Kosmos Verlags-GmbH & Co. KG, Pfizerstraße 5-7, 70184, Stuttgart, Germany, kosmos.de/servicecenter