The Three Investigators Kids, 14, Danger from Outer Space

"Crazy! With this device, you could knock comets out of orbit," Bob marveled. Peter nervously looked up at the night sky. "Hurry, the ultimatum expires in exactly two hours." Will the Three Investigators succeed in freeing the kidnapped professor? Who else is after the secret formula? A thrilling race against time begins.

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