Rouletabille at Krupp’s by Gaston Leroux. Short summary

5 seconds

A dangerous weapon falls into the hands of the enemy, and Paris finds itself in danger. Journalist Rultabius infiltrates an industrial plant to stop the development of the weapon and remedy the situation.

1 minute

A scientist invents a dangerous weapon with enormous power, capable of destroying Berlin in an instant. War breaks out and the scientist is captured by the Germans. The weapon falls into enemy hands, and Paris is one step away from destruction.

The journalist Rultabius tries to remedy the situation. Accompanied by his friends Dushechka and Vladimir, he first infiltrates the enemy’s rear and then the industrial plant of Krupp, located in Essen.

Rultabius must provoke a halt to the development of weapons that are a threat to Paris. The mechanism’s sophisticated launcher is located in a high three-hundred-meter hangar. At first the hero is in the position of a prisoner of war, but he quickly achieves the position of lead engineer.