Out of This World #9 (1958)

In "The Omnipotent Robot," scientist Siroco has built a powerful android named Tondo for space exploration, but when a man he calls 'Your Excellency' seeks to use it for conquest, Tondo's first mission takes an unexpected turn—returning after three years, damaged and showing images of a dead world that deters invasion. Now, on a new mission to Earth, Tondo must again outwit the despot, using deception to shield the planet from a fate it has not yet earned.