The Moon Maid

by Edgar Rice Burroughs

Summary

After a century of war, all Earth was at peace at last, and friendly communication had been established with the planet Mars. Interplanetary co-operation made possible what neither world had been able to achieve alone - ships to bridge the distance between the worlds.
But The Barsoom, the first Earth-Mars vessel, was treacherously sabotaged, thrown off course, and obliged to make an emergency landing on the Moon. And there, beneath the craters, at the interior of the arid satellite, the crew found a world cut off from the rest of the solar system, inhabited by warring monsters, and the decaying remnants of an ancient civilization.