The Blue Boy is a children's picture book by Martin Auer, with illustrations by Simone Klages.

Instead, he builds himself a giant armoured robot to travel around in and starts looking for someone who cannot be killed by a gun.

Only when the old men offers him to use his telescope to study the people down there on the blue planet and to find out why they fight wars and how this could be stopped he agrees to drop his gun so he can stay with the old man.

Martin Auer first wrote the story for the German television series Siebenstein (ZDF).

The story is also part of the collection The Strange War by Martin Auer that has been translated in more than 25 languages.